COLUMBUS, Ind. - Police are pursuing leads in hopes of determining who killed four people in shootings officials described as "brutal" in a rural Bartholomew County home on Saturday.
In a news conference Tuesday afternoon, Bartholomew County Sheriff Mark Gorbett confirmed that authorities believe the killings of Katherine Burton, 53, Thomas Smith, 39, Aaron Cross, 41 and Shawn Burton, 41, were drug-related.
More: 911 calls detail scene
Gorbett said all four victims were shot in the head and were shot multiple times.
Gorbett said methamphetamine, numerous spent shell casings, a knife and a rifle were recovered from the crime scene at 2634 E. Main St. in Waynesville.
Gorbett said investigators aren't sure if the rifle was used in the killings and that forensic analysis would be completed to make that determination.
Two people have been interviewed in connection with the killings, but there have been no arrests. Authorities do not think a son of Katherine Burton who called 911 after finding the bodies was involved in the killings.
Investigators still have the home roped off. Gorbett said police want to ensure they have collected all the evidence.
Bartholomew County Coroner Larry Fisher said autopsies have been completed and that the victims died in a "very violent and brutal attack."
Fisher said Katherine Burton had also been stabbed.
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