Cape Cod

19-year-old pleads not guilty to charges in deadly Dennis boat crash

Prosecutors say David K. Sullivan was driving the boat that crashed in Sesuit Harbor on July 21. He faces charges including operating a boat under the influence

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The 19-year-old charged in a deadly boat crash in Dennis, Massachusetts, pleaded not guilty to all charges at a hearing Tuesday morning.

Prosecutors allege David K. Sullivan was driving the boat that crashed in Sesuit Harbor on July 21, killing 17-year-old Sadie Mauro. She would have been a senior in high school this year.

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At the hearing in Barnstable Superior Court, Sullivan was ordered released on $5,000 bail, on condition he hand over his passport. Lawyers for both sides said they'd been involved in extensive conversations.

Sullivan had been indicted by a grand jury on charges of death of a person caused by operating a vessel under the influence of intoxicating liquor, possessing false RMV documents, minor in possession of alcohol, two counts of operation of a vessel while under the influence of intoxicating liquor causing serious bodily injury and reckless or negligent operation of a vessel causing death. He pleaded not guilty to all charges and is due back in court Dec. 14.

A young man is facing charges in a boat crash that killed a teen girl on Cape Cod.

Mauro's body was recovered from the water by the regional dive team, with assistance from Dennis Fire-Rescue personnel, around 11:30 p.m. on the night of the crash, officials have said.

A preliminary investigation revealed that the boat — a Regulator equipped with two outboard 250 horsepower engines bearing an Alabama registration — was occupied by six people at the time of the crash, which occurred at the jetty by the channel leading to the Northside Marina.

It's unclear how Sullivan and Mauro knew each other, but both were lacrosse players.

Sullivan attended the prestigious Roxbury Latin School, and currently attends Dartmouth College, where he's been a member of the lacrosse team.

Those who knew Sadie Mauro described her as having a lot of heart and purpose, with a spark and sass that will be missed. The 17-year-old was killed in a boating accident over the weekend.

Mauro, who lived in Sherborn with her parents and brother, was an elite lacrosse player at Dover-Sherborn High School.

"What occurred that night was an unimaginable tragedy," Sullivan's attorney, David E. Meier, said in a statement. "But what occurred was an accident — in every sense of the word. These criminal charges only compound that tragedy for everyone involved."

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