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302 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Statistics

Quebec missing persons & unsolved case statistics

Numbers behind 406 missing person, death by force, unidentified, unclaimed, serial killer and mass murder cases in Quebec – by state, decade, age, sex, race and how many are solved. Free to read and link to; members get every breakdown, filters, sortable tables and CSV downloads.

Data as of November 6, 2026 · updated daily · How these numbers are counted

Reset
Cases in Quebec
406
368 open · 36 solved / resolved
Missing Persons
329
329 still missing · 0% located
Deaths by Force
75
39 unsolved · 48% solved
Serial killer profiles
2
by the state where they killed
Added in the last 30 days
36
73 added or updated
Oldest open case
1954
Clifford Edward Sherwood Thorne, Montreal, QC · still missing

“Solved / resolved” means a missing person located, a death by force marked solved or charged, unidentified remains identified, or an unclaimed person claimed. Our homicide records focus on unsolved cases, so these shares are not police clearance rates – see the methodology.

Cases by type

Missing Persons 329 329 still missing
Deaths by Force 75 39 unsolved
Serial Killer Profiles 2

By state & province

Cases per state and per 100,000 residents, a shaded state-by-state list, top cities, and Indigenous missing and murdered (MMIP) by state.

Cases by state and province

Click a state or province to see its statistics. All case types.

CSV

Top cities by open cases

Missing, deaths by force, unidentified and unclaimed cases, by the city recorded on the case.

CSV
CityStateCasesOpenSolved / resolvedSolved / resolved %
MontrealQC15314495.9%
LavalQC1513213.3%
Trois-RivièresQC111019.1%
LevisQC9900%
LongueuilQC98111.1%
QuebecQC137646.2%
Rouyn-NorandaQC6600%
GatineauQC4400%
MascoucheQC3300%
CowansvilleQC3300%
Saint-HyacintheQC3300%
MalarticQC3300%
Quebec CityQC32133.3%
DorvalQC2200%
BlainvilleQC2200%
FarnhamQC2200%
BrossardQC2200%
JonquièreQC2200%
Havre-Saint-PierreQC2200%
Saint-LeonardQC2200%
RimouskiQC2200%
TerrebonneQC2200%
Trois-RiviaresQC2200%
Salaberry-de-ValleyfieldQC2200%
JolietteQC2200%
Mont-TremblantQC2200%
LasalleQC2200%
MontréalQC2200%
Val-dOrQC2200%
VerdunQC31266.7%
FabrevilleQC21150%
WestmountQC21150%
Sainte-Clotilde-de-HortonQC1100%
Saint-PhilippeQC1100%
Sainte-ThereseQC1100%
VimontQC1100%
MagogQC1100%
Saint-CalixteQC1100%
Saint-LucienQC1100%
ChamblyQC1100%

Indigenous missing and murdered (MMIP), by state / province

Cases where the person is recorded as American Indian, Alaska Native, Indigenous or First Nations. 1 missing persons were reported missing from tribal land (1 still missing).

CSV
State / provinceMissingStill missingDeaths by forceUnsolvedUnidentified / unclaimedTotal
Quebec770007

By decade & year

Cases by decade and year, the solved share by decade (the “cold case curve”), and seasonality by month and day of the week.

Cases by decade

Stacked by case type.

CSV

Solved / resolved share by decade

The “cold case curve”: the share of each decade’s cases now marked solved, located, identified or claimed (decades with fewer than 10 cases are left out).

CSV

Cases by year (last 50 years)

Recent years include many newly added cases; older years are more likely to be resolved and removed from public databases.

CSV

Cases by month

Seasonality: month of the case date (only cases with a full date).

CSV

Cases by day of the week

Day of the week of the case date (only cases with a full date).

CSV

By age

Age groups for each case type, solved share by age, average ages and an age / sex pyramid.

Cases by age group

Average age: 35.4 missing · 28.2 deaths by force.

CSV

Solved / resolved share by age group

Share of each age group’s cases marked solved, located, identified or claimed.

CSV

Age and sex

Male (left) and female (right) by age group – missing, deaths by force, unidentified and unclaimed together.

CSV

By sex

Male / female split for each case type and solved share by sex.

Cases by sex

Share of each case type that is male, female or not recorded.

CSV

Solved / resolved share by sex

Share of male and female cases marked solved, located, identified or claimed.

CSV

By race & ethnicity

Race and ethnicity compared with the U.S. population, and the solved share for each group.

Cases by race / ethnicity

Share of each case type, compared with the U.S. population in the table.

CSV

Solved / resolved share by race / ethnicity

Share of each group’s cases marked solved, located, identified or claimed (groups with fewer than 10 cases are left out).

CSV

Solve rates & how long cases stay open

Case status for deaths by force, how many years open cases have been open, and a state-by-decade solved-share heatmap.

Deaths by force: case status

How each case is recorded. “Charged / in court” counts as solved in the solved share; accidental and self-inflicted deaths are left out of it.

CSV

How long open cases have been open

Years since the case date, for cases still unsolved, missing, unidentified or unclaimed.

CSV

Solved / resolved share by state and decade

Percent of missing, deaths by force, unidentified and unclaimed cases now solved, located, identified or claimed. Hover a cell for the count.

CSV
State1950s1960s1970s1980s1990s2000s2010s2020s
QC5514205000
<2%2–55–1010–2020–3535–5050%+fewer than 10 cases

Rewards offered 3 deaths by force cases list a reward, and 3 of them are still unsolved.

Possible matches

Possible missing person / unidentified remains matches by score.

Possible missing person / unidentified matches

102,236 possible matches scoring 75% or higher, involving 13,695 missing persons and 7,877 unidentified remains. Browse the matches.

CSV

Serial killers & mass murders

Serial killers by victims and decade; mass murders by year, place, firearms, attacker and victims.

Serial killers by number of victims

Confirmed victims listed on each profile (2 profiles).

CSV

Serial killers by decade they started

CSV

Serial killers by sex and race

CSV
GroupProfilesShare
Sex: Male2100%
Race: White2100%

Longest-open cases

The oldest unsolved, missing, unidentified and unclaimed cases, linked to each case file.

Longest-open missing persons

The 25 oldest still missing cases in Quebec.

CSV
NamePlaceDateYearsAgeSex
Clifford Edward Sherwood ThorneMontreal, QCOct 1954729Male
Diane CarrierQuebec, QCSep 1963636Female
Yvette BourgonMontreal, QCMar 19666033Female
Jacqueline LefebvreMascouche, QCAug 19685842Female
Robert Douglas MartinRouyn-Noranda, QCJan 19695728Male
Chenel DubeMontreal, QCAug 19705622Male
Marthe TurcotteMontreal, QCSep 19715519Female
Georges TurcotteSaint-Hyacinthe, QCSep 19715527Male
Maryse ChaletteSaint-Charles-Bor…, QCNov 19715526Female
Chantal De MontgaillardSaint-Hubert, QCJun 1972544Female
Jean Guy ChampagneTrois-Rivières, QCJul 19725424Male
Mario CardinalTrois-Rivières, QCAug 19725426Male
Allen Robert FoyLongueuil, QCSep 19725429Male
Michel BlanchetteLaval, QCOct 19725422Male
Rene BessetteMontreal, QCDec 19725439Male
Pierre GariepyMontreal, QCFeb 19735328Male
Guy CarignanTrois-Rivières, QCApr 19735323Male
Lucie GelinasTrois-Rivières, QCApr 19735321Female
Richard Damasse RiquierMontreal, QCApr 19735321Male
Francoise GuilbaultJoliette, QCMay 19735331Female
Gilles ValcourtWaterloo, QCDec 19745227Male
Sylvie OuimetMontreal, QCApr 19755120Female
Gaetan PoulinMontreal, QCMay 19755121Male
Gaetan AnglehartMontreal, QCJun 19755118Male
Marie Berthe Perreault Astle WisemanPointe-Claire, QCJun 19755157Female

Longest-open deaths by force

The 25 oldest unsolved cases in Quebec.

CSV
NamePlaceDateYearsAgeSex
Teresa MartinMontreal, QCOct 19695714Female
Alice PareSainte-Clotilde-d…, QCFeb 19715514Female
Ursula SchulzeSaint-Philippe, QCJul 19725419Female
Carole DupontSainte-Therese, QCDec 19735318Female
Diane DeryLongueuil, QC19755113Female
Lisa ChoquetteVimont, QCApr 19755130Female
Mario CorbeilLongueuil, QCMay 19755115Male
Jocelyne HouleSaint-Calixte, QCApr 19774924Female
Claudette PoirierSaint-Lucien, QCJul 19774915Female
Joanne DorionFabreville, QCJul 19774917Female
Helene MonastChambly, QCSep 19774918Female
Katherine HawkesCartierville, QCSep 19774934Female
Louise CamirandMagog, QCOct 19774920Female
Manon DubeAyers Cliff, QC19784810Female
Lison BlaisMontreal, QCJun 19784817Female
Theresa AlloreCompton, QCNov 19784819Female
Nicole GaudreauxMontreal, QCAug 19794731Female
Gerald LapierreSaint-Janvier-de…, QCJan 19804650Male
Tammy LeakeyDorval, QCMar 19814512Female
Dianne AubertQuebec City, QCFeb 19824423Female
Sylvie TrudelMontreal, QCApr 19824427Female
Murielle GuayMontreal, QCApr 19824419Female
Stephane GauthierMontreal, QCDec 19824412Male
Franklin Dimitrios ShoofeyMontreal, QCOct 19854144Male
Lyette GibbLaval, QCApr 19873918Female

Community activity

Forum discussion, memorials, evidence boards and the most viewed cases.

Community activity

Real member activity on case pages (all cases, not affected by the filters).

CSV
MeasureCount
Cases with member forum discussion: Mass murders19
Cases with member forum discussion: Missing persons390
Cases with member forum discussion: Deaths by force725
Cases with member forum discussion: Serial killers59
Cases with member forum discussion: Unclaimed3
Cases with member forum discussion: Unidentified4
Cases with a MyMemorium memorial5,007
Evidence boards created by members256

Most viewed deaths by force cases

All-time page views.

CSV
CasePlaceViews
Joachim SummerfordAberdeen, NC12,738
Zion TerryRichmond, VA11,613
Travis A. HobbsNew-orleans, LA6,159
Shannon WatkinsJonesboro, GA5,535
Jameal GaudetHarvey, LA4,992
Melanie Lynn BerryWichita-falls, TX4,965
Kiarra Jazzmyn GeorgeSacramento, CA4,738
Romeca MeeksChicago, IL4,180
Javon M. BaileyLouisville, KY3,752
Felicito CanalesBaton-rouge, LA3,605
Shawn HudsonThrockmorton County, TX3,583
Eric Tyrone Smith, Sr.Jackson, MS3,355
Benjamin Joseph DeenHattiesburg, MS3,312
David WashingtonPensacola, FL3,292
Lt. Michael Anthony Boutte,Perkinston, MS3,269

Methodology & how to cite

These statistics count the cases in the Crime Solvers Central database as of November 6, 2026. They are rebuilt every night.

What is counted

  • Missing persons – NamUs, NCMEC and Canadian police cases. “Located” means the case is marked resolved (found alive or deceased). Age is the age when last seen.
  • Deaths by force – homicides and other violent deaths from police, news, court and public records. “Solved” includes cases marked solved, charged / in court, primary suspect deceased or substantiated. Deaths ruled accidental or self-inflicted are counted but left out of solved shares.
  • Unidentified remains and unclaimed persons – NamUs cases. Unidentified ages use the middle of the medical examiner’s estimated range.
  • Serial killer profiles are placed in the state where they killed and the first year they were active; victims are the confirmed victims listed on the profile. Mass murders are incidents, dated by the attack; attacker and firearm details come from The Violence Project coding where available.
  • Race and ethnicity are as recorded by the source and grouped into broad categories; “Multiracial” is used when more than one is listed.
  • Per-100,000 rates use 2020 U.S. Census and 2021 Canadian Census populations.

Limits

  • This is not a complete count of all crime. Our homicide records lean heavily toward unsolved cases, so the solved share is much lower than official police clearance rates and should not be reported as one.
  • Coverage differs by state and by year: some cities and states have been imported in full, others only partly, and recent years include many newly added cases.
  • Cases without a date, age, state or race are left out of that breakdown only (they still count in the totals).

How to cite

Crime Solvers Central. “Quebec Missing Persons & Unsolved Case Statistics.” Data as of November 6, 2026. https://crimesolverscentral.com/statistics/quebec

You’re welcome to link to this page or to any state’s page (for example /statistics/texas). Each chart’s Cite button copies a citation that links straight to that chart.