The Associated Press

FORT WAYNE — A judge sentenced a man to more than two life sentences in prison on Friday for his role in a 2012 southside house explosion that killed a Greenwood school teacher and her husband and destroyed or damaged dozens of homes.

Bob Leonard of Indianapolis was convicted last month on all 51 counts he had faced, including murder, arson and insurance fraud charges. Leonard, 57, received two consecutive life sentences without parole on the murder counts, along with 70 years on the other charges, according to Allen Superior Court Executive John McGauley.

Prosecutors said surveillance video, witness testimony and DNA evidence proved Leonard was involved in the plot with his half brother and others to use natural gas and a microwave to blow up the house to claim $300,000 in insurance.

Leonard’s half brother, Mark Leonard, was convicted of being the mastermind behind the Nov. 10, 2012, explosion. He was sentenced in August to two life sentences, along with 75 years in prison.

The home was owned by Mark Leonard’s girlfriend at the time, Monserrate Shirley, who testified that Bob Leonard was brought into the plot after a first attempt to burn down her house failed in October 2012. Prosecutors allege the suspects planned to destroy the house by filling it with natural gas.

A microwave apparently set to start on a timer sparked the blast.