A suspended Seabrook police officer is facing an assault charge in connection with the treatment of a suspect in 2009.

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A suspended Seabrook police officer is facing an assault charge in connection with the treatment of a suspect in 2009.Click to watch News 9's coverage.The Attorney General's Office said Officer Mark Richardson was indicted on a count of simple assault.A video posted to YouTube in January showed Richardson and two other officers walking Michael Bergeron, then 19, down a hall at the Seabrook Police Department on Nov. 11, 2009. At one point, Richardson appears to slam Bergeron against a wall.A staggering Bergeron is then pulled to his feet and is walked down the hall.Richardson and two other officers were placed on paid leave after the video came to light and an investigation began.The indictment alleges that Richardson "did knowingly cause unprivileged physical contact to Michael Bergeron Jr., by slamming his head into a concrete wall."Because Richardson was on duty at the time of the incident, he potentially faces enhanced penalties. Officials said he could face a maximum sentence of two to five years in prison and a fine of $4,000.A grand jury was also presented with an assault charge against Officer Adam Laurent, who was accused of using pepper spray on Bergeron. The grand jury did not return an indictment against Laurent, so he will not face a criminal charge.A third officer who had been placed on leave, Keith Dietenhofer, is not facing any charges, prosecutors said.Bergeron had been arrested on a DWI charge at the time of the incident. After his arrest, he requested and received the videos from the police station, but they didn't surface until this year.No one answered the door at Richardson’s or Bergeron’s homes on Thursday. The Seabrook police chief said he would meet with town officials Friday to see if Richardson would continue getting his paid leave and would comment after the meeting.“I’m shocked that Officer Laurent didn’t get in trouble,” said Bergeron's mother, Joyce. “Mace is a weapon.”Prosecutors said a third officer who was put on leave had no role in the assault. Richardson will be arraigned April 24.12967056