STONEHAM, MASS. (WHDH) - Police on Wednesday raided the home of a man accused of trying to enter a Stoneham elementary school while carrying knives back in March, officials confirmed.

Neighbors said they saw FBI agents going in and out of 39-year-old James McCarty’s Hancock Street home for hours. The FBI confirmed that agents were there to “conduct court-authorized activity.”

In March, McCarty, who is a convicted sex offender, was sent by a judge to undergo a mental health evaluation after he pulled on the doors of the South Elementary School. The incident outraged parents, resulting in public apologies from both the district’s superintendent and the chief of Stoneham police for the lack of communication.

Following an additional FBI investigation, McCarty is facing upgraded charges, including making a bomb and hijack threat and threatening to commit a crime.

Cell phone video showed Hancock Street lined with law enforcement Wednesday afternoon.

“What [the FBI] found, I would like to know that, especially living right next door to him for however many years, what they could’ve found, especially with the bomb threats and the weapon threats that he was making,” neighbor Zoe Pacious said.

This is a developing news story; stay with 7NEWS on-air and online for the latest details.

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