Police said several officers were chasing a white pickup truck with two people inside when the shooting happened about 10:45 a.m. on a stretch of the interstate that skirts the city's downtown and the Providence Place mall.
The truck appears to have been closed in by responding officers, who approach the passenger side of the auto and fire numerous shots.
While it was initially thought the chase involved the same suspect who stole a state police cruiser around 9 a.m. Thursday, Paré later said the chase "was not directly related to theft of the trooper vehicle". It's still unclear how many state police officers fired their weapons.
State Police Col. Ann Assumpico said a trooper had been driving a cuffed suspect to court in the cruiser and stopped at a crash scene to assist, the Journal reported.
Clements said the truck driver was behaving so aggressively, he was causing a huge public safety risk and several people were in danger.
The shooting came after a chase on Route 10 that ended at the on-ramp from Memorial Boulevard to I-95 North adjacent to Providence Place.
"As that vehicle is driving in a very aggressive manner, this vehicle is now being used as a weapon in an attempt to flee and it is hitting other cars, it is ramming at least one other auto", Col. Clements said as he walked reporters through the events leading up to Santos' death.
Pare said they are now reviewing the footage. He said no weapons were found in the pickup truck. When it wouldn't stop, police opened fire on the truck in front of the mall. One man was killed and a woman was injured.
This is the third officer-involved shooting by Providence police this year, and the first fatal shooting by Providence police since March 2014.
There was also a woman in the passenger side of the truck, police said. "The driver of the vehicle posed an immediate deadly threat to others on the road and to police officers".
The shooting was witnessed by a person who filmed it from a nearby on-ramp.
At the press conference Friday afternoon, authorities showed footage from one of the responding officer's body cameras, as well as footage from Department of Transportation highway cameras.