Montreal police arrested seven people Wednesday and accused them of being part of a violent gang that killed Angelo D'Onofrio.

Officers rounded up at least seven people following a year-long investigation into the murder of D'Onofrio, three arsons, and a home invasion.

D'Onofrio, a presumed mafia member, was killed last year when a man walked into a café and shot him.

Just two weeks ago Montreal police said that D'Onofrio was not the intended target of the assassin.

Members of the anti-gang squad teamed up with the major crimes unit, the arson squad, and other units from the Montreal East unit.

Police said many of these acts were committed on behalf of a street gang.

On Wednesday police raided five locations and arrested seven people, namely Leeroy Abraham, 25, Elvis Comoe, 28, Vladimir Laguerre, 27, Ebamba Ndutu Lufiau, 28 Kens Emmanuel Noel, 24, Pawel Plachta, 25, and Jeff Joubens Theus, 25.

"We think we've taken out the enforcers, the people who were doing the major  violent crimes in the city," said Vincent Rozon of the Montreal police department.

Police seized two firearms, along with ammunition and a homemade silencer, and a Taser.

The accused will face charges of murder, arson, theft, weapons possession, fraud, and conspiracy.

All are expected in court on Thursday.

Rozon added he expects there are more arrests to come.