A 41-year-old Brooklyn man was arrested for one homicide and confessed to a second killing three weeks after the first, police said Wednesday.

Hason Rink was arrested Tuesday in the July 2 shooting of 20-year-old Deondraye Moore. He surprised investigators by also confessing to killing 39-year-old Ancil Blackman last Friday, police said.

Rink told police he shot the first victim because someone paid him to do it and the second because the man had flirted with Rink’s girlfriend, authorities said.

Rink was awaiting arraignment in Brooklyn criminal court on Wednesday. It wasn’t clear if he had an attorney to speak for him.

Surveillance video from Moore’s killing released by police shows a man walking up to the victim on a street corner and shooting him in the head. A female bystander was shot in the arm and upper body but survived. A witness picked Rink out of a photo lineup, police said.

“I’m still trying to wrap my head around it,” Derrick Moore, the victim’s father, told the Daily News at the time. “I’m shocked.”

Blackman, the second victim, was killed as he was heading home from his job as a building porter. Police said Rink and Blackman had been involved in some sort of dispute over Rink’s companion.

(AP)