Police say she was shot six times.
Seconds later, the suspect gets back on his bike and is seen flying up into the air after being struck by a Hyundai Sonata.
As Reyes struggles to get up, the Hyundai rolls by him in reverse — by then with the driver apparently having exited — and hits a pole.
Mass’s boyfriend, Dwayne Walker, 58, who was allegedly behind the wheel of the Hyundai when it first struck Reyes, can then be seen grabbing Reyes and throwing him onto the hood of the car, punching him repeatedly.
After bystanders intervene, Walker races over to Mass, trying to help her as she lays bleeding on the sidewalk from the gunshot wounds.
Mass was rushed to a local hospital where she was pronounced dead, the NYPD says in a statement.
“She was beautiful,” Walker told the Daily News Thursday night. “She was everybody’s person, everybody’s friend. She was the one at the party who got everybody dancing. Everywhere she went, she drew a crowd.”
Bystanders held onto Reyes until an IRS agent who was in the area arrested him, ABC 7 reports.
Reyes was taken into custody and transported to a local hospital, where he was listed in stable condition.
Reyes has been charged with second-degree murder, manslaughter, criminal use of a firearm and criminal possession of a weapon, the NYPD told PEOPLE in an email.
NYPD Chief of Detectives James Essig said at a news conference local residents had described Mass as “sort of the mayor of City Island, always a friendly face, always waving ‘Hi’ to passersby, has kind words for motorists as they go by in traffic.”
Essig said Reyes worked as a handyman in the area and “frequently” came by the construction site on his bike.
“She always has a friendly smile for him, talks to him,” he said. “Yesterday he stops by. He brings a sandwich to her. They have some sort of discussion which we don’t know about.”
“We don’t know what triggered him,” Essig said.
Police say investigators believe “there was no relationship” between Mass and Reyes and are still trying to determine Reyes’ alleged motive, but they believe Reyes may have wanted to date Mass, WPIX reports.
Walker told the Daily News that Mass was friendly to everyone, including Reyes. “She befriended him,” he told the paper. “She said this guy would bring her lunch sometimes.”
Walker told the paper that, just before the alleged shooting, Mass introduced Reyes to him.
ELizbeth’s brother, Raul Mass, said Reyes allegedly grew enraged when he learned that she had a boyfriend, he told the Daily News.
“When my sister presented her boyfriend to him, he changed his look,” said Raul. “I think he didn’t know she had a boyfriend,” said Mass. “He just exploded,” said Walker.
Walker has not been charged.