Brockton (WBZ Newsroom/AP)  -- Racism allegedly was the motive in the gunshot killings of a man and woman and critical wounding of another woman, authorities said, as a 22-year-old Brockton man was arraigned in the case on Thursday.

Keith Luke was charged with murder, attempted murder and rape after Wednesday's shooting rampage -- which prosecutors said followed a statement by the suspect that he was going to try to kill as many non-white people as he could.

According to a police report, Luke told police he was "fighting extinction" of the white race and planned to kill blacks, Hispanics and Jews. He allegedly said he had intended to kill as many non-whites as possible before killing himself.

Luke was ordered held without bail and sent to Bridgewater State Hospital for evaluation after he pleaded innocent in Brockton District Court.

Prosecutors said his attack started at the home of a former neighbor, where he shot two women and raped one of them. Twenty-year-old Selma Goncalves, a Cape Verdean immigrant, was killed and the other woman was seriously wounded.
 

Luke then allegedly fled in a van, but stopped to shoot and kill Arlindo Depina Goncalves, a 72-year-old homeless man who was walking with a carriage.

Luke was captured after a brief chase during which he allegedly fired on police officers and they returned fire. No one was wounded.

He was arrested after he crashed his van into cars at Court and North Quincy streets, according to Plymouth District Attorney Timothy Cruz. No one was injured in the crash.

Police reported that they received a call for shots fired on Clinton Street around 1 p.m. Wednesday. When they got on scene, they found two women suffering gunshot wounds.

One died and the other was taken to a Boston hospital and was listed in critical condition.