After meeting with Attorney General Eric Holder, Michael Brown’s parents, Lezley McSpadden and Michael Brown Sr., told Anderson Cooper that they trusted the federal government to do a proper investigation into the Ferguson police killing of their unarmed son. Brown’s father also said that the killer, Officer Darren Wilson, should go to jail so the familly can “have some type of peace.”

Watch a segment of the interview above and visit CNN.com for additional footage.