Prosecutor: Explosion investigated as homicide

INDIANAPOLIS (WISH) - An Indianapolis explosion that killed two people is being investigated as a homicide, sources close to the investigation tell WANE sister station WISH.

Investigators met with residents of Richmond Hill after which they addressed the media.

VIDEO: Prosecutor says explosion now homicide investigation

Authorities announced they are turning the case into a criminal homicide investigation, but they can't release many details about the investigation as of now.

Officials said if anyone has any information about a white van seen in the subdivision on the day of the explosion, call Crime Stoppers.

Crime Stoppers is offering a $1,000 reward and the Bureau of Alcohol, Tobacco and Firearms is offering a $10,000 reward for an arrest and conviction in the case.

The news comes the same day t he two victims of the explosion were laid to rest .

About 80 homes were damaged when the explosion rocked the Richmond Hill subdivision on the night of Nov. 10. Dion and Jennifer Longworth were killed in the blast.

The Longworth's home was destroyed, along with one owned by Monserrate Shirley . She wasn't home at the time of the explosion; she was in southern Indiana at a casino with her boyfriend.

Shortly after the explosion, Monserrates Shirley's ex-husband, John Shirley had told news outlets there was a problem furnace in the the house he co-owned with his ex-wife. Citizens Energy gas company was unable to confirm the reports of a faulty furnace but said the homeowner wouldn't necessarily report such a problem to the gas company.

On Tuesday, Nov. 14, Department of Homeland Security officials announced they believed natural gas to be involved in the explosion. The DHS announced this after Citizens Energy said that tests showed a natural gas leak did not cause the Richmond Hill explosion.

Investigators haven't named any suspects.