FORT WAYNE, Ind. (AP): An Indianapolis man could be sentenced to life in prison without parole for his role in a 2012 house explosion that killed two and destroyed or damaged more than 80 homes.

Allen Superior Judge Frances Gull is scheduled to sentence 57-year-old Bob Leonard this afternoon. Leonard was convicted last month of 51 counts, including murder, arson and insurance fraud. Prosecutors said surveillance video, witness testimony and DNA evidence proved he was involved in the plot with his half-brother, Mark, and others to use natural gas to blow up the house for $300,000 in insurance.

The Nov. 10, 2012 explosion killed Dion and Jennifer Longworth.

Mark Leonard was sentenced last year to two life sentences and 75 years in prison.