A dispute between neighbors that led to a shooting last month in Johnson County, is flaring back up again.

Sheriff Doug Cox says that the victim in the shooting, Jeff Weigle, is still recovering in the hospital. But he was recently threatening to leave the hospital and do harm to the man who shot him, Indianapolis Paramedic Dean Keller.

Keller shot Weigle four times, at the property near Greenwood, including a hit to the chest that caused a sucking chest wound, authorities say. Prosecutors found that Keller was acting in self defense and declined to press charges. According to police reports, Keller shot back at Weigle, after Weigle displayed a handgun and shot at him while mowing the grass. Authorities say this has been a long-running dispute between the men.

Cox says that a warrant was served on Weigle in the hospital for criminal recklessness with a deadly weapon and now they are working on a protective order. Jail staff are observing Weigle at an undisclosed rehab facility, the sheriff says.

The Indianapolis Star reports that the two men have clashed more than a dozen times since 2009. In 2011, both men were arrested on battery charges ges after a fight. Keller was stabbed in the arm in that fight, and Weigle suffered cuts, scratches and bite wounds, according to a police report.