FORT WAYNE, Ind. (AP): Prosecutors and defense attorneys are set to make closing arguments in the trial of a man charged with helping plot a massive Indianapolis house explosion that killed two people and destroyed or damaged more than 80 homes.

The Allen County jury is expected to begin deliberations today on whether Bob Leonard is guilty of murder and other charges in connection with the November 2012 blast.

Prosecutors allege Leonard took part in a plot to collect $300,000 in insurance by causing a natural gas explosion in the house of his half brother’s then-girlfriend.

Leonard didn’t take the witness stand as the defense spent about a half hour presenting testimony Friday following 16 days of prosecution witnesses.

Leonard’s half brother, Mark Leonard, is serving two life sentences after being convicted in July.