From [HERE] A viral video that is making the rounds on social media is drawing concern among parents.

The video shows a Saint Lucie County Sheriff's deputy taking down a sixth grader outside Lincoln Park Academy in Fort Pierce.

"That's kind of rough to be at a school campus, he didn't have to slam him down like that," said General Platt, as he watched the video while picking up his twins on Wednesday.

"I would have freaked out if I saw that in person," said Jazmine Arias, as she was waiting to pick up her sister. "He's a kid, I don't think a little kid should be thrown to the ground like that."

The 15 second video shows a the school resource deputy run after a 6th grader outside the school Tuesday afternoon and slam him on the grass. Another video then shows the student in handcuffs walking away.

"If the kid was fighting him back and he felt like he was in some kind of danger, then I could justify his actions, but it didn't appear to be that way," Platt said.

At a news conference Wednesday afternoon, Sheriff Ken Mascara said the deputy did not use excessive force, and the video does not show what happened in the minutes beforehand.

"Our school resource deputy is very familiar with this student and knows he has a violent history, including possessing weapons," Mascara said.

The Sheriff says the student was recently caught with a knife, and he has to be escorted around campus by a staff member because he's been physically aggressive to staff and students.

Mascara says the 11-year-old was aggressive during dismissal on Tuesday, and when staff tried to stop him he ran away. That's when the resource deputy took him to the ground.

"At the end of the day the deputy did everything he could to diffuse the situation, and his use of force fell within the legal and our agency guidelines," Mascara said.

The deputy has been a school resource officer for eight years, three of which have been at Lincoln Park Academy. Mascara said the deputy has never had a complaint of excessive force.

The student is now facing a number of charges. He was taken to the hospital briefly and left with a band-aid. His grandfather tells WPTV, he is now undergoing a mental health evaluation in Lake Worth Beach.