Efren Chairez Diaz, a 29-year-old Latino, was shot and killed on July 18, 2017, in Wilmington, Los Angeles. The shooting happened about 10 p.m. in the 1400 block of North Marine Avenue while Diaz was standing with a group of people. An unidentified assailant approached and opened fire.

Witnesses described the shooter as a slim-built man about 5 feet 6 inches tall, wearing a dark hooded sweatshirt; he fled north on North Marine Avenue and then east into an alley toward North Avalon Boulevard. The Los Angeles Police Department investigated but has not determined a motive for the killing, and no arrests have been announced. Crime Stoppers was offered as an anonymous tip option.

What information about that night or the suspect’s movements might help detectives close this case?