Police officials have said that a Minnesota man allegedly went on a rampage Thursday, shooting three people dead and wounding another before killing himself.

The Minneapolis Star Tribune reported on Friday that Trace Maxwell, 40, a Minneapolis-St. Paul tattoo parlor owner who police say also sold drugs and ran prostitutes, allegedly shot and killed a girlfriend, Amy Terborg, 28, and wounded her roommate, Gina Fredrickson, 20.

Maxwell drove to the home of Jason Rand, 38, allegedly shot and killed him, then drove to another home where police say he fatally shot a third victim.

The Star Tribune also reported that both the third victim and Rand had taken out restraining orders against Maxwell, saying he had threatened them.

Police said Maxwell knew all of the victims from business dealings.

They said that Police focused on Maxwell as a suspect in the rampage after the shooting of Terborg.

The newspaper also said that they tracked Maxwell through his cellphone calls, and a dozen police cars followed Maxwell's SUV in a slow-speed chase through city streets.

Detectives were in contact Maxwell by phone, trying to talk him into surrendering, when he apparently shot himself, crashing the SUV.

Capt. Amelia Huffman of the Minneapolis Police Department, said, "At no point did he give a coherent explanation for why he did these things." (With Inputs from Agencies)