Another disturbing story about actor Mark Wahlberg's troubled past has come back to haunt him.
Mary Belmonte, a retired teacher from Boston, is speaking out to INSIDE EDITION about how a 15-year-old Wahlberg was in a gang that terrorized her fourth grade class on a field trip to a beach in 1986.
It happened a few years before Wahlberg rocketed to fame as rapper Marky Mark.
Belmonte told INSIDE EDITION's Steven Fabian, "They started throwing rocks, saying, 'We don't want black people here,' and 'This is our neighborhood,' and things like that."
She also said, "I don't think he realizes just how frightened we all were."
Fabian asked. "Were the children scared?"'
Belmonte replied, "Very scared, I was scared also."
Belmonte says some of the children knew Wahlberg from the local boys club.
"Mark was one of the names they recognized, so he was with the group. I can't say I saw him pick up a rock and throw it," said Belmonte.
A nine-year-old girl on the field trip was hit in the forehead by a rock, but fortunately was not hurt seriously.
Wahlberg was arrested along with two of his friends, but the charges were dropped after they agreed never to harass the teacher or any of the children again.
Wahlberg is now asking for a pardon for a different run-in with the law when he assaulted a Vietnamese immigrant in 1988 when he was 16.
He served 45 days in jail and spoke about it to INSIDE EDITION at the premiere of his new movie, "The Gambler."
Wahlberg said, "Its always been something that I've been focused on correcting, and you know I've worked very hard to better myself as a person."
Mary Belmonte told Fabian that, much to her surprise, the punk she knew back in 1986 became a huge star.
"I'm pleased to see he has made something of himself and didn't end up in jail," said Belmonte.
She hopes Wahlberg gets his pardon, but still wants him apologize for the trauma he helped inflict on her fourth grade class so many years ago.
"He should just say, 'I'm sorry,' I think those are two powerful words," Belmonte concluded.