( CNN ) By all appearances Shaun Harrison was living an exemplary life . He was a dean at a Boston public high school . He mentored young people . And , Harrison regularly attended services at a local church for a decade , before leaving in 2012 , according to the church 's pastor . Now , Harrison is charged with armed assault with intent to murder , aggravated assault and battery with a dangerous weapon . He 's also facing multiple weapons charges . Harrison is accused of shooting one of his students in the head . While he was working as `` dean of academy '' at English High , Harrison was also running a marijuana distribution enterprise , according to Suffolk County Assistant District Attorney , David Bradley . At an arraignment hearing Thursday , Bradley said the 55-year-old now-former dean shot a 17-year-old student he had allegedly hired to sell marijuana . The teenager , who called Harrison `` Rev '' told authorities he was regularly mentored by Harrison , according to police documents . Bradley said in a news release that the two got into a dispute after leaving Harrison 's home Tuesday evening . They were walking along a street when Harrison then `` produced a handgun , pointed it at the back of the victim 's head and fired , '' Bradley said in a news release . The incident was captured on surveillance footage , but the police have not released it . The teen , who has not been named by police yet , was shot behind the right ear , according to a police report . He is expected to survive his injuries , Bradley 's release said . Harrison had worked in various positions with the Boston Public Schools since 2010 . He had been `` dean of academy '' at English High School since January 5 , where `` he provided services , like finding housing for homeless students or social services or disciplinary alternatives to suspension , '' said Denise Snyder , a representative for Boston Public Schools . His employment has been `` terminated effective immediately , '' Snyder said . The Rev . Dr. Gregory Groover , pastor of the Charles Street AME Church where Harrison attended services said the allegations against Harrison are n't consistent with the man he knows . `` I was stunned beyond description , '' Groover said when he heard about Harrison 's arrest . Groover said Harrison was already an ordained Baptist minister when he came to the Charles Street AME Church . He recalled Harrison usually attended services alone , but he `` got along with everyone . '' `` He seemed to consistently care with a deep heart for saving young people who were in the streets or gang related , prison-involved , '' Groover said . `` That was the population that his life seemed to center around . '' A not guilty plea was automatically entered on Harrison 's behalf . He posted $ 250,000 bail and is under house arrest , according to police documents . He has been ordered to `` stay away and have no contact with the victim '' and wear a GPS monitor , the DA 's release said . He is scheduled to be back in court on April 6 . CNN 's multiple attempts to reach an attorney for Harrison were unsuccessful . CNN 's Aaron Cooper , Chuck Johnston and Alexandra Field contributed to this report .
Shaun marijuana is accused of shooting one of his students in the head . The student,17 , was hired to sell Harrison for marijuana , district attorney says . The teen is expected to survive ; the dean , who is out on bail , has been ordered to stay away from him .