"(Vessel) apparently went into their apartment, shot them both with the same .40-caliber gun," Hennepin County Attorney Mike Freeman said at an afternoon news conference, the Star Tribune reported.
Police arrived around 10:30 p.m. and questioned Vessel, who claimed he did not hear anything, the Star Tribune reported.
Investigators found a blood-like substance on the wall of Vessel’s apartment and a .40-caliber gun, ammunition and a pill bottle with Vessel’s name on it in a trash bag thrown in the apartment complex trash bin.
Investigators learned Vessel had previously threatened to kill a neighbor and had shown a handgun to another tenant, WCCO reported.
Vessel had no other relationship with the victims, police said.
A GoFundMe account was set up to help the family of the victims.