This undated photo provided by the Chicago Fire Department shows Chicago firefighter Corey Ankum. A blaze at an abandoned building on Chicago#39;s South Side killed Ankum and another firefighter, and left 14 injured Wednesday, Dec. 22, 2010. As fires go, the one that broke out Wednesday in a small vacant building on the city#39;s South Side was likely to be pretty routine for the Chicago Fire Department. The cause of the fire was under investigation, Authorities speculated that squatters might
