School dean-turned-dealer faces 20 years for maiming student

In this May 30, 2018, photo, Shaun Harrison reacts as attorneys give closing arguments in Suffolk Superior Court in the jury trial of him in Boston. Harrison, the former dean at a Boston high school who was known as an anti-violence advocate, has been convicted of shooting and nearly killing a 17-year-old student. (Pat Greenhouse/The Boston Globe via AP)
This undated booking photo released Thursday, May 31, 2018, by the Suffolk County District Attorney's Office shows Shaun Harrison who had worked as a dean at Boston English High School for five years. Harrison was convicted on Thursday in Boston of shooting and nearly killing a student in 2015 that he had recruited to sell marijuana for him. (Suffolk County District Attorney's Office via AP)

School dean-turned-dealer faces 20 years for maiming student

In this May 30, 2018, photo, Shaun Harrison reacts as attorneys give closing arguments in Suffolk Superior Court in the jury trial of him in Boston. Harrison, the former dean at a Boston high school who was known as an anti-violence advocate, has been convicted of shooting and nearly killing a 17-year-old student. (Pat Greenhouse/The Boston Globe via AP)
This undated booking photo released Thursday, May 31, 2018, by the Suffolk County District Attorney's Office shows Shaun Harrison who had worked as a dean at Boston English High School for five years. Harrison was convicted on Thursday in Boston of shooting and nearly killing a student in 2015 that he had recruited to sell marijuana for him. (Suffolk County District Attorney's Office via AP)