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

Case Description

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Summary based on the NamUs case record (MP467) and 3 other sources
In May of 1999, the life of 28-year-old Daniel Gerard Chervenka Jr., a man of many talents and a United States Navy veteran, took a turn that left his family searching for answers. Living in Phoenix, Arizona, Daniel, also known as Dan or Danny, was a father to a young daughter and was pursuing studies in astrophysics and philosophy. He was a gifted pencil portrait artist, played classical guitar, and had taken karate lessons. However, Daniel had also been diagnosed with bipolar disorder in 1997 and had reportedly stopped taking his medication in 1998, leading to a worsening of his condition. On May 28, 1999, after having dinner with his family in Fountain Hills, he returned to his Phoenix apartment. That evening, he made a distressing phone call to his sister, in which he reportedly made unspecified threats towards family members. Although his sister contacted the police, they were unable to intervene as the threats were not specific. This would be the last time his family heard from him.

The day after Daniel's last contact with his family, a man found his wallet on a road leading into the Four Peaks Wilderness area, about an hour north of Phoenix, and left a message on his answering machine. It wasn't until eleven days after he was last heard from that authorities searched his apartment, finding a Bible and an open notebook on a table, but no sign of Daniel. Following the discovery of his wallet, a search of the Four Peaks area was initiated. On June 9th, his vehicle was found abandoned at the Cline Trailhead. Despite the discovery of his car and wallet, extensive searches of the rugged terrain by the Maricopa County Sheriff's deputies yielded no further clues as to his whereabouts. The reason for Daniel traveling to the Four Peaks area remains a mystery to his family, as he was more accustomed to hiking in areas closer to Phoenix, such as Camelback Mountain and Squaw Peak, and had not been to the Four Peaks since he was a child.

The disappearance of Daniel Chervenka Jr. is a case that continues to leave a void in the hearts of his loved ones. He was a man with a diverse range of interests and a promising future, whose life was complicated by mental health challenges. The circumstances surrounding his vanishing are perplexing, from the threatening phone calls to the discovery of his personal belongings in a remote area he was not known to frequent. Over two decades have passed since he was last seen, and the lack of any significant leads has left the case unsolved. The official investigation remains open, with the Phoenix Police Department handling the case. The discovery of his abandoned vehicle and wallet in the Four Peaks Wilderness points to a journey that ended in mystery, leaving his family to wonder what happened to the talented veteran, artist, and father in the vast wilderness of the Tonto National Forest.

Last Seen: May 29, 1999

Possible Unidentified Matches (10)

Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

83%Moderate
John Doe — Laveen, Arizona - unidentified case UP2028
John Doe — Laveen, Arizona
UP2028 • Found Nov 23, 2003
View case
Sex ✓Male
Age 100%Est. 20–35 vs 28 when missing
Race 100%White
Location 100%8 mi away, same county
TimingFound 4 years after last seen
Height 100%6'0" vs 5'11"–6'1"
Weight 100%196 lb vs 170–180 lb
Hair 100%Brown vs Brown
Eyes 0%Brown vs Blue
81%Moderate
John Doe — Phoenix, Arizona - unidentified case UP2040
John Doe — Phoenix, Arizona
UP2040 • Found Apr 19, 2003
View case
Sex ✓Male
Age 85%Est. 20–40 vs 28 when missing
Race 100%White
Location 100%5 mi away, same county
TimingFound 4 years after last seen
Height 100%5'10" vs 5'11"–6'1"
Hair 100%Brown vs Brown
81%Moderate
John Doe — Phoenix, Arizona - unidentified case UP1971
John Doe — Phoenix, Arizona
UP1971 • Found Apr 7, 2001
View case
Sex ✓Male
Age 99%Est. 30–40 vs 28 when missing
Race 100%White
Location 100%5 mi away, same county
TimingFound 22 months after last seen
Height 68%5'8" vs 5'11"–6'1"
Weight 100%160 lb vs 170–180 lb
Hair 100%Brown vs Brown
Eyes 0%Brown vs Blue
79%Possible
John Doe — Phoenix, Arizona - unidentified case UP819
John Doe — Phoenix, Arizona
UP819 • Found Aug 2, 2007
View case
Sex ✓Male
Age 100%Est. 35–50 vs 28 when missing
Race 100%White
Location 100%5 mi away, same county
TimingFound 8 years after last seen
Height 84%5'9" vs 5'11"–6'1"
Weight 100%155 lb vs 170–180 lb
Hair 60%Black vs Brown
Eyes 0%Brown vs Blue
79%Possible
John Doe — Phoenix, Arizona - unidentified case UP2059
John Doe — Phoenix, Arizona
UP2059 • Found Jul 24, 2002
View case
Sex ✓Male
Age 100%Est. 17–30 vs 28 when missing
Race 100%White
Location 100%Same area, same county
TimingFound 3 years after last seen
Height 68%5'8" vs 5'11"–6'1"
Weight 90%206 lb vs 170–180 lb
Hair 60%Black vs Brown
Eyes 0%Brown vs Blue
79%Possible
John Doe — Phoenix, Arizona - unidentified case UP1964
John Doe — Phoenix, Arizona
UP1964 • Found Oct 26, 1999
View case
Sex ✓Male
Age 100%Est. 20–30 vs 28
Race 100%White
Location 100%8 mi away, same county
TimingFound 5 months after last seen
Height 36%5'6" vs 5'11"–6'1"
Weight 100%178 lb vs 170–180 lb
Hair 100%Brown vs Brown
Eyes 0%Brown vs Blue
78%Possible
John Doe — Winterhaven, California
UP13536 • Found Sep 4, 2001
View case
Sex ✓Male
Age 100%Est. 18–30 vs 28 when missing
Race 100%White
Location 64%156 mi away
TimingFound 2 years after last seen
Height 100%5'10" vs 5'11"–6'1"
Weight 100%180 lb vs 170–180 lb
Hair 100%Brown vs Brown
78%Possible
John Doe — Laveen, Arizona - unidentified case UP6601
John Doe — Laveen, Arizona
UP6601 • Found Nov 22, 2009
View case
Sex ✓Male
Age 100%Est. 30–45 vs 28 when missing
Race 100%White
Location 100%8 mi away, same county
TimingFound 10 years after last seen
Height 68%5'8" vs 5'11"–6'1"
Weight 88%142 lb vs 170–180 lb
78%Possible
John Doe — Phoenix, Arizona - unidentified case UP729
John Doe — Phoenix, Arizona
UP729 • Found Jun 16, 2006
View case
Sex ✓Male
Age 85%Est. 26–42 vs 28 when missing
Race 100%White
Location 100%5 mi away, same county
TimingFound 7 years after last seen
Height 100%6'0" vs 5'11"–6'1"
78%Possible
John Doe — Tempe, Arizona
UP2023 • Found Dec 5, 2003
View case
Sex ✓Male
Age 60%Est. 20–50 vs 28 when missing
Race 100%White
Location 100%8 mi away, same county
TimingFound 5 years after last seen
Height 100%5'10" vs 5'11"–6'1"
Weight 91%145 lb vs 170–180 lb
Hair 100%Brown vs Brown

These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.

Unidentified photos are blurred because many are post-mortem. Tap a photo to reveal it.