Jamie Arceo, 19, was fatally shot during a robbery at his family’s restaurant, El Taconazo, on the Northwest Side of Chicago on May 7, 2017. The attack happened about 2:50 a.m. when an armed man wearing a ski mask entered through the back door. According to accounts, the suspect shot a 22-year-old restaurant worker in the back, then demanded that Jamie open the cash register and fired multiple shots at Jamie, who was taken to a hospital and pronounced dead.

The shooter fled on foot from the back of the restaurant and remained at large. The family and community mounted a visible response: a memorial of flowers and candles was placed at the restaurant, and Jamie’s father spoke publicly about the family’s grief and urged anyone with information to come forward. No arrests have been announced and the Chicago Police Department is investigating.

If anyone remembers that early-morning robbery or saw a person running from the rear of El Taconazo that night, please share what you know with investigators.