BOSTON -- Boston police are searching for those responsible for a shooting over the weekend that left a 22-year-old woman dead in Dorchester. Police said the woman was not the intended target.

NewsCenter 5's Shiba Russell reported that Chiara Levin, 22, a Kentucky native, was shot and killed while sitting in a car on Geneva Avenue early Sunday morning.

Levin was leaving a house party on Geneva Avenue when the shooting broke out around 3:30 a.m. She was hit in the head. A well-known gang member was hit in the shoulder, police said. Officials said the woman wasn't taken to a hospital until 4 a.m.

"The coward who was responsible for this homicide snuffed out the life of a beautiful young girl by using indiscriminate gunfire and total disregard for human life," Boston Police Commissioner Ed Davis said.

Police asked for witnesses of the shooting to come forward.

"It is critical for people who attended that party, people who were in that area, to come forward and talk to police about what you might know or what you might have seen prior to those gunshots," said Boston Homicide Division Deputy Superintendent Daniel Coleman.

Police said they have interviewed the two friends Levin was with at the time of the shooting and the host of the party.

Boston Mayor Tom Menino said he's outraged by the crime.

"We are going after the people who hosted the party, whether it was legal. But also the individuals who are not coming forward with information are accessories after the fact," he said.

Police are looking at security video from the Theater District, where Levin met the men who drove her to the party in Dorchester where she was shot.

"It frustrates me as mayor of the city. A young woman comes here, expects to have a good time and this happens to her. It is wrong," Menino said.

Menino said the investigation is centered around a known gang member who checked himself into the hospital with a gunshot wound on the same morning. Police are investigating whether the shootings are related.

Those who knew her said Levin was full of promise.

"Very articulate, bubbly, just a great person to be around. Her peers, her classmates enjoyed her presence as well," said Angela Johnson, a friend and former principal.

Levin was working in New York. She was Boston's 13th homicide victim this year.