INDIANAPOLIS — Residents whose Indianapolis homes were battered by a gas explosion and relatives of a couple who were killed packed a court hearing Monday for the three suspects charged with rigging the blast.

The crowd watched in grim silence as a Marion County judge entered not guilty pleas for Monserrate Shirley, her boyfriend, Mark Leonard, and his brother, Bob. They are charged with murder, arson and other counts in the Nov. 10 blast.