A Seekonk man is accused of murder after he allegedly shot and killed a man in Rhode Island before causing a car crash in Swansea that killed two people last week, police said.  

Demitri Sousa, 28, is charged with murder, using a firearm while committing a crime of violence, and carrying a pistol without a license, the Cranston Police Department said.

The shooting occurred Thursday night in Cranston, police said in a press release.

That night, Sousa allegedly arrived at the Cranston home of Javon Lawson, 35. Sousa began banging on the side door of the home, police said. 

When Lawson approached the door, he was hit by gunfire from outside, police said.

First responders transported Lawson to the Rhode Island Hospital, where he was pronounced dead, Cranston police said.

“Based on the preliminary investigation, the motive is believed to be a dispute between the suspect and the victim over a mutual female acquaintance. Detectives are continuing this investigation to gain more insight, as well as to collect and analyze evidence,” Colonel Michael Winquist, Chief of Cranston police, said in an emailed statement to Boston.com.

Neighbors gave police video footage that “showed a male subject wearing dark clothing and a mask walking toward the residence moments before the shooting and fleeing immediately afterward,” Winquist said.

The suspect was also seen running to a white Infiniti sedan which then drove off, the Cranston police chief said.

Shortly after the shooting, a license plate reader captured the vehicle driving southbound on Route 10, and then later in Fall River and Westport, Massachusetts. The sedan’s license plate was registered in Sousa’s name, Winquist said.

At around 12:18 a.m. Friday, Swansea police spotted Sousa’s Infiniti barreling down Route 6, Swansea officials said.

Just moments later, Sousa allegedly “crashed into the side of another vehicle, a blue 2022 Subaru Ascent that had been traveling southbound on Route 136,” Swansea Police Chief Mark Foley and Fire Chief Eric Hajder said in a joint press release.

Both vehicles had “catastrophic damage,” and the struck car was engulfed in flames, the Swansea officials said.

The driver and passenger of the hit car — a man and a woman — were declared dead at the scene, they said.

“Swansea Police had been alerted to be on the lookout for the suspect vehicle. However, Swansea Police were not involved in the pursuit and were not pursuing the vehicle at the time of the crash,” the Swansea chiefs wrote. Swansea official have not announced charges related to the fatal crash.

Sousa had been driving the Infiniti and appeared to be suffering from serious injuries, Winquist said. Inside the car, police found a pistol and “additional .22 caliber ammunition was recovered” from Sousa at Rhode Island Hospital, Winquist said.

Police arrested Sousa and transported him to Rhode Island Hospital. Sousa is expected to survive, Winquist said. Sousa will be held in Cranston police custody until he is conscious and medically cleared, Winquist said.

“On behalf of the Cranston Police Department, I want to extend my deepest condolences to the family and loved ones of Javon Lawson and the two individuals who were killed in the crash in Swansea,” Winquist said.