The 17-year-old boy was arrested Friday, June 3, and charged as an adolescent offender with first-degree burglary, Suffolk County Police said.
He was expected to be arraigned at First District Court in Central Islip.
Investigators said he and a 14-year-old boy entered a home in Mastic Beach at around 4 p.m. on April 19 and sexually and physically assaulted the victim before fleeing the scene with cash and property.
The woman was hospitalized with non-life-threatening injuries, police said.
The 14-year-old suspect was previously arrested for his role in the incident, according to police.
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