FORT WAYNE, Ind. (WOWO): The trial of an Indianapolis man charged with murder and arson from a deadly 2012 house explosion continues, but there isn’t much to say about the defendant’s demeanor.

Day four of the trial of Bob Leonard, 57, continued Wednesday with heart-wrenching testimony from neighbors living near the home. Neighbors described the sights, sounds, and effects the explosion had on them.

However, Leonard himself remained expressionless as the trial continued, according to our partners in news at 21Alive.

Leonard is accused of rigging a microwave to ignite a natural gas explosion in the home of his brother’s girlfriend for insurance money. The trial is expected to continue for a few more weeks.