Officers have arrested a man in connection with the death of a 37-year-old man in Dartmouth four years ago, Halifax Regional Police said Wednesday.

On May 22, 2011, James Gregory Wareham, of Lower Sackville, was stabbed after a fight at Majestic Manor on Primrose Street. He was taken to hospital with a knife wound to the stomach and died of his injury.

Police say at 9:30 a.m. on Wednesday, homicide investigators arrested a 24-year-old suspect on Walter Havill Drive in Halifax.

He has not been charged.

At the time of Wareham's death, police said they believed Wareham knew his attacker and it appeared the two were involved in the drug trade.

"It's been quite emotional," Wareham's mother Agnes told CBC News.

"We're really pleased they have someone in custody, off the streets, which makes everyone all safer I think."

She said they heard from the police around 11 a.m. Wednesday.

"When I got off the phone, there were so many questions I could have asked them that I didn't because I was shocked. Very emotional of course. I cried and cried."