Security video shows Alpine Bank security guard shooting, killing would-be bank robber 34-year-old Laurence Turner of Rockford. ROCKFORD, Ill. — The police department in Rockford, Illinois has posted a graphic video of a bank security guard shooting and killing an armed man. A masked man entered the Alpine Bank on Jan. 20. In the video you can see the man fire one shot at the ceiling, then turn and fire a shot at the guard, who works for a private security company. It takes a matter of seconds for the guard, later identified as Brian Harrison, to draw his gun and return fire. The masked man does a bit of a dive roll and tries to run out but collapses at the entrance to the bank.