Luis Torres, 23, was shot while standing on Boylston Street in Jamaica Plan Saturday evening

Luis Torres, 23, was shot while standing on Boylston Street in Jamaica Plan Saturday evening, according to police. Another person shot during the Egleston Square violence suffered non-life threatening wounds, police said.

Spontaneous Celebrations, a non-profit in Jamaica Plain where Torres often went for classes and programs, is holding a vigil for him tonight. A childhood friend said Torres's mother died about a year ago, and that he was still struggling to recover from her death when he was killed.

"He went through a lot of tough stuff in his life and losing his mother was very bad for him," said the friend, Adrian Rivera. "He was getting better. He was hooking up with the right people."

Also today, family and two law enforcement officials identified the woman who was murdered inside a Roxbury convenience store by a killer armed with an AK-47 assault rifle. Tahitia Milton was a mother of four who recently held a "Sweet 16'' birthday party for one of her daughters, a friend said.

Milton was 39 years old and lived in Roxbury. Milton was inside the Quick Stop convenience store on Warren Street Saturday afternoon when she was murdered and the store owner was wounded by the gunman.

A law enforcement official said an image of an armed man was captured on a surveillance camera. The store owner. known to neighbors as "Mo,'' is believed to be the gunman's target and detectives continue to search for an explanation for the attack on Milton.

Boston Police Commissioner Edward F Davis said Sunday that the Warren Street shooting "does not appear to be a simple robbery. There are other factors there.’’

However, Torres's shooting is believed to be gang-related, according to two officials with knowledge of the investigation.

Two gangs in Jamaica Plain have been shooting at each other in recent months and Torres's death is believed to be connected to that feud, according to the officials.

In the first shootings of the weekend's violence, two men were shot — and one of them critically wounded — on Blue Hill Avenue in Dorchester at about 2 a.m. Saturday. In all, seven people were shot, two fatally, this weekend.