Greg Cuyler, once the eighth-ranked amateur flyweight in the US, was shot to death early Sunday.
Cuyler, 23, of Hartford, was shot in the chest and leg at The Main Tower lounge in the city's North End at about 1 a.m., police said. He was the city's fifth homicide victim of the year.
Police would not say whether Cuyler was the intended target. Authorities were searching for suspects.
Cuyler was ranked eighth by USA Boxing in 2002. Cuyler's father visited the scene of the shooting Sunday.