An Ottsville man who stabbed his girlfriend’s ex-paramour during a fight at her house, then threatened him in a phone call from prison, was sentenced Monday to serve three to six years in state prison.

Jeremie Hammerstone, 30, pleaded guilty to aggravated assault, retaliation against a witness, terroristic threats and possession of an instrument of crime before Bucks County Common Pleas Court Judge Wallace H. Bateman Jr.

The sentence imposed by Bateman was the result of a plea agreement between Deputy District Attorney Thomas C. Gannon and Deputy Public Defender Suzette S. Adler. In addition to the prison time, Bateman sentenced Hammerstone to a consecutive two years of probation.

“You acted out, and your behavior is inexcusable,” the judge told him. “You know that.”

On June 23, 2017, Hammerstone was at the home of his girlfriend, Heather Radcliff, in Ottsville, when Radcliff’s former partner, Karl Kennedy, showed up uninvited. Despite being warned by Radcliff not to come inside, Kennedy entered the home and got into a fight with Hammerstone.

After the fight progressed into the first-floor bathroom, Hammerstone stabbed Kennedy in the left side with a knife. Seeing that he was bleeding, Kennedy drove himself to Doylestown Hospital, where state police were summoned.

Months later, while awaiting trial, Hammerstone placed a threatening phone call to Kennedy from the Bucks County Correctional Facility by convincing a female friend to set up a three-way call. After the two exchanged insults, Hammerstone told Kennedy, “You’re (expletive) dead, (expletive).”

Kennedy contacted police, saying he feared for his safety and that of his children. Investigators retrieved recordings of Hammerstone’s prison calls and confirmed Kennedy’s account.

Hammerstone told Bateman that he is on medication for depression and anxiety, and that he has a history of methamphetamine use.

He said he hoped to serve his time in a boot-camp environment, and pledged to straighten out his life.

“I’m sorry, sincerely sorry to the court and to my victims,” Hammerstone said. “I want today to be remembered not as a waste of time, but as a turning [point] in my life.”

Bateman accepted the plea negotiation and ordered Hammerstone to have no further contact with Kennedy.

The case was investigated by the Pennsylvania State Police, Dublin Barracks.

Contact: Thomas C. Gannon, 215.348.6461, tcgannon@buckscounty.org