Through the preliminary investigation, detectives found that the woman who died and another shooting victim were at the complex to fight the other women present. As the vehicle, driven by the shooting victim, approached the group, unknown suspects fired multiple shots, striking the vehicle and both victims, police said.

About 8 p.m., a 911 caller reported that someone was shot and "a lot of people were fighting" at Gateway Park.

Police declared a barricaded gunman situation at 6 p.m. and negotiated with the man for approximately three hours before his arrest.

Fitchburg police said a man was killed after gunfire erupted on Mechanic Street early Sunday morning. The victim, found suffering from a gunshot wound outside a vehicle, was rushed to the hospital but did not survive.

Investigators searching for a man they say shot and killed four people at a Montana bar Friday morning have located the pickup truck he fled in, but the suspect — believed to be armed and dangerous — remains on the loose,

Law enforcement officers are scouring a mountainous area of western Montana for a military veteran who authorities say opened fire at a bar, killing four people

Police say the suspect was "a regular" at the bar where he opened fire, and that a bartender and three patrons were among the victims.