(Courtesy of The Grays Harbor County Sheriff''s Department)

The man suspected of stabbing a judge and shooting a sheriff's deputy with her own gun in a Montesano, Wash., courthouse has turned himself in to police, after hours of tense negotiations to get him to surrender that began following a call to investigators from his mother.

After arresting the suspect, identified as Steven Daniel Kravetz, 34, investigators found the deputy's gun in the West Olympia home, police said.

Kravetz' mother, Roberta L. Dougherty, 58, also known as Roberta Kravetz or Roberta St. George, had called police early today, after seeing a wanted poster of herself and her son.

She began negotiating with authorities for her son to turn himself in, Grays Harbor County Undersheriff Rick Scott said.

Kravetz surrendered without incident after a SWAT team surrounded the house in West Olympia, a few blocks from the Capital Mall, and Kravetz surrendered to officers, police said.

After allegedly attacking the judge and deputy Friday, Kravetz fled the scene on foot and went to his former attorney's office, where he asked to use the telephone and called his mother to pick him up, ABC affiliate KOMO-TV in Seattle reported. Scott told KOMO that the lawyer had no idea about what had happened at the courthouse.

Kravetz' mother came from West Olympia to get her son and bring him home, Scott said.

Both the judge and the deputy are reportedly out of the hospital after being treated Friday.