A 20-year-old man gunned down his 16-year-old girlfriend in Lincoln Heights, and then killed himself November 6. Juan Carlos Mendez shot his girlfriend Maria Valderrama in the back of the head about 8:35 p.m. after an argument in the 2400 block of Daly Street.

He then ran off, but was found by police in an alley about a block away with a fatal self-inflicted gunshot wound to his chest. He was taken to a nearby hospital but died a few hours later. Anyone with information should contact 77th Division detectives at 213-485-1383.