A King County Sheriff’s deputy has been charged with one count of felony harassment in connection to a domestic violence incident at his home outside Issaquah. Prosecutors are accusing Dep. Daniel Murphy, 34, of threatening to kill his ex-girlfriend.

Just after 8 a.m. Sunday, Feb. 1, deputies responded to a report of domestic violence at the home of Murphy and his ex-girlfriend, who also works for the sheriff’s office.

According to charging documents, the couple had recently broken up and Murphy was in and out of the residence. His ex-girlfriend told investigators with the Major Crimes Unit that Murphy had become angry about an email she had sent his mother about the breakup.

“I will kill you,” Murphy said, according to the documents. “I’ve never been more close to physical violence on anyone before. I hope your family dies.”

Murphy countered by telling investigators he had been threatened with a gun before during domestic arguments. His accuser said she had kept her gun on her person for her safety during a heated argument, but pointed away from Murphy.

Murphy was booked into King County Jail Saturday and appeared in King County Superior Court Monday for a hearing, where bail was set at $50,000 while he was being investigated for threats to kill. He posted bond Monday night.

The King County Sheriff’s Office officially announced the arrest Tuesday without identifying Murphy prior to formal charging. He was charged Wednesday in a second appearance at the Seattle courthouse. He will be arraigned Feb. 17.

Murphy is a nine-year veteran of the sheriff’s office with no prior criminal history. He has been placed on administrative leave and the office is conducting an internal investigation of the matter.