LOUISVILLE, KY. (WDRB) -- A southeastern Indiana man has pleaded guilty to killing five people during an apparent dispute over drugs.

David Ison was charged in the shooting deaths of Roy Napier, his estranged wife, their two children, and a neighbor.

In September their bodies were found inside of Napier's mobile home in rural Laurel, Ind., about 50 miles southeast of Indianapolis.

Prosecutors say Ison was upset Napier had raised the price of oxycodone pills he was selling because Medicaid was no longer going to pay for a prescription.

He'll be sentenced in March.

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