Juan Mendez-Hernandez, 23, was fatally stabbed in San Francisco’s Mission District on April 18, 2010. The attack occurred early that morning on Florida Street; a neighbor called police about 3:29 a.m. After officers followed a trail of blood they found Mendez-Hernandez with stab wounds. One report says he was pronounced dead at the scene, while another account says he was taken to hospital and later declared deceased.

Neighbors reported a party at the back of the apartment building that may have been connected to events leading up to the stabbing, but the exact circumstances of the altercation remain unclear. No arrests have been announced and the attacker reportedly fled before police arrived. The case remains unsolved and the San Francisco Police Department’s Homicide Detail continues to seek public tips.

If anyone has information about that night or knows anything about the attack, please contact the San Francisco Police Department’s Homicide Detail or the anonymous tip line.