Steven Graves, 56, was found fatally stabbed outside the Pik Nik convenience store at 550 Ruiz Street in San Antonio on September 17, 2016. Around noon witnesses saw him running across the street from a vacant lot to the store, where he collapsed; officers found two stab wounds, one to the heart and another on his left side. He was taken to University Hospital and pronounced dead at 1:16 p.m.

A man was seen walking away from the vacant lot and is described as the suspect, but he has not been identified. The circumstances of the attack remain unclear; the San Antonio Police Department asks anyone with information to come forward and Crime Stoppers has offered a reward for tips leading to an arrest.

If anyone knew Steven, saw activity near 550 Ruiz Street that day, or has information about the man seen leaving the vacant lot, please share what you know with investigators.