Alabama ? The husband of an Alabama professor accused of fatally shooting three colleagues said Monday that the couple went to a shooting range recently, but that he didn’t know where she got the gun she used for practice.

His description of Amy Bishop’s “normal” demeanor leading up to Friday’s shooting at a faculty meeting matched an account by a witness, who said the gathering was unremarkable until the gunfire broke out. Bishop, a Harvard-educated neurobiologist, is accused shooting six people at the meeting, three fatally. Two of the survivors remained in critical condition Monday.

Police have previously said Bishop had no permit for the gun they believe she used in the shooting.