This from the New York Daily News.

A Brooklyn teen was missing and presumed drowned
after he was thrown from his Jet Ski in a Mill Basin collision
yesterday afternoon.
The victim, identified by sources as Paul Zaccaria, 17, of Mill Island,
was riding in the waters off Brooklyn about 4:30 p.m. when he
apparently crashed into another Jet Ski.

Paul catapulted off his craft and went under. An intense search by NYPD
harbor and aviation units, firefighters, park police and the Coast
Guard was suspended at 8:30 p.m. because of darkness.

"There were about six Jet Skis out there," said 13-year-old Nicolas
Grabowski, who was on one himself. "They were fishtailing – driving
real close, driving real fast. None of them had life jackets on."

"He went up in the air, and he went down in the water," said another witness, Tom Jones, 75, of Marine Park.

Nicolas’ mother, 37-year-old Natalie Zalloughi, heard the crash and ran into the water to try to save Paul.

"He vanished. I never saw anything like it," she said. "I just jumped in and swam across with a life jacket and a pole."

She said she was saying to herself, "Please God, let me find him. Let him come up."

The 16-year-old driver of the other watercraft and his 20-year-old
passenger, who were uninjured, ran ashore and called 911. Police were
interviewing them, but said no charges were expected.

The crash occurred in water 15 to 40 feet deep.

"What do you say about a 17-year-old?" said Paul’s uncle, Larry
Guarnieri of California, who is in New York for a family wedding. "He’s
got a lot of friends. He’s got a lot of family, and he has his whole
life ahead of him."

Relatives gathered at Paul’s nearby home to comfort his mother, Joann Zaccaria.

"This was her only son," said a next-door neighbor. "She’s devastated."