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Medfield Teen Charged With Boat Crash That Killed 17-Year-Old Dover Girl On Cape Cod: DA

Authorities have accused a 19-year-old Norfolk County man of crashing a boat while intoxicated over the summer and killing a beloved 17-year-old girl with a bright future, officials said. 

Sadie Mauro, 17, was killed on July 21, when the boat she was riding in crashed into a jetty on Cape Cod.

Sadie Mauro, 17, was killed on July 21, when the boat she was riding in crashed into a jetty on Cape Cod.

Photo Credit: TikTok/Sadie Mauro

David K. Sullivan, 19, was indicted on Friday, Sept. 29, on death of a person caused by operating a vessel or boat under the influence of alcohol, possessing fake RMV documents, minor in possession of alcohol, reckless or negligent operation of a vessel causing death, and two counts of operation of a vessel while under the influence of alcohol causing serious bodily injury, Cape and Islands District Attorney Robert Galibois announced on Tuesday. 

Sadie Mauro, a rising senior at Dover-Sherborn High School in Dover, was killed on July 21 when the boat she was riding in crashed into a jetty in Sesuit Harbor on Cape Cod around 9 p.m. Investigators say Sullivan was steering the craft when it smashed into the rocks. 

Two other people were seriously injured in the crash, Galibois said. 

Mauro was a standout lacrosse player at her high school and had signed a letter of intent to play the sport at Gettysburg College in Gettysburg, Pennsylvania. 

Along with her skills on the field, Mauro was remembered as "having a heart of gold," Dover-Sherborn High School Principal John Smith said. 

"Sadie’s smile could light up a room. She had a heart of gold and the sweetest spirit," Smith said in a message to parents and students over the summer. "She had such a strong sense of self and had a love for adventure and anything outdoors. A hardworking student and great athlete, Sadie was genuine and effortlessly kind."

Daniels is expected to be arraigned next week, the prosecutor said. 

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