Luis Javier Hernández Juárez, 46, was shot to death on October 4, 2015, in Hidalgo, Texas, while performing with his musical group at the anniversary celebration of the ejido San Francisco in the municipality of Villagrán. Reports state an assailant approached him during the event at about 11:00 PM and shot him three times with a .45 caliber automatic pistol before fleeing the scene.

Hernández Juárez was a former mayor of Villagrán, Tamaulipas, serving from 2011 to 2013, and was known locally as both a public official and a musician. The Procuraduría General de Justicia del Estado says the investigation is ongoing; authorities have been following leads and interviewing witnesses but no arrests had been announced as of the latest account.

What information about that night or the suspect might help investigators bring this case to a close?