INDIANAPOLIS (WOWO): Search warrants served after a fatal house explosion in Indianapolis show investigators were looking for evidence that three defendants were researching ways to rig the blast. The documents released yesterday show investigators asked the Indianapolis police cybercrime unit to try to uncover data on computers and hard drives belonging to Mark Leonard, his girlfriend, Monserrate Shirley, and his brother, Bob Leonard. The three are charged with murder and arson in the November 10th explosion that killed a couple living next door to Shirley and destroyed 33 homes.