By Yamiche Alcindor and Doug Stanglin, Jun. 19, USA Today

CHARLESTON — As a subdued Dylann Roof made his first official appearance Friday on charges of killing nine people at a historic black church, police affidavits offered grim details of the murder case, including an allegation that the gunman fired multiple shots into each victim and stood over them to issue "a racially inflammatory statement."

The documents also said that Roof's father and uncle contacted police to positively identify the 21-year-old as the suspect after authorities issued photos of the gunman within hours of the attack at the Emanuel AME Church in downtown Charleston Wednesday evening.

As those details trickled out, the suspect's family issued a statement expressing sadness and offering condolences to the families of the victims:

Dylann Roof's father, according to the court documents, told investigators that his son owned a .45-caliber handgun. The documents note that .45-caliber casings were found at the scene of the shootings.