Police said the victims were gunned down just after 5:35 a.m. by two masked suspects who rode up and then off on scooters.
It happened in a parking lot on the north side of Ferry Point Park on Schley Avenue, police said.
A 22-year-old man, identified as Gabriel Alvarez, was shot in the shoulder and torso and pronounced dead at Jacobi Hospital.
A 21-year-old man, identified as Adam Waldropt, was shot in the back and abdomen and was taken to Jacobi Hospital, where he later died.
The violence is coming on the heels of a violent weekend in the borough where three people were shot and another was stabbed shortly after the Dominican Day Parade.
A mother and a big sister looked for answers behind a warehouse after 22-year-old Gabriel Alvarez was shot and later died.
The mother was doubled over, crying into the arms of a female NYPD officer.
The black GTI abandoned on Schley Avenue had belonged to Alvarez.
"It's definitely scary for us to see this. Because we usually come here over the weekend, but seeing this, you know we have a second thought coming in here," a neighbor said.
Exclusive surveillance video shows the mayhem in the secluded corner next to Ferry Point Park and Brush Avenue.
In the hour leading up to the shooting, dozens of people and dozens of cars are seen filling the street. A slingshot and motorbikes were popping wheelies, and a gray sedan crashed into a tree.
People can also be seen on the video running around the corner from the parking lot, presumably as the gunfire broke out.
Detectives in bulletproof vests were seen canvassing the area on Monday.
Neighbors say it's a haven for street racing and other illicit activity.
The crime scene expands over into the park, where forensic crews will sift through droves of discarded alcohol bottles and cans for evidence, police said.
The double-fatal shooting happened not even 24 hours after a show-and-tell at the 42nd Precinct, where Mayor Eric Adams, the NYPD and the Bronx District Attorney touted the seizure of more than 3,000 illegal guns and an all-time low in shootings in New York City.
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