A Fairfax County jury convicted a Franconia man of manslaughter this week for bludgeoning his roommate to death in November 2012, according to court records and his attorney.

The jury sentenced Eric C. Kweder, 35, to 10 years in prison in the killing of 32-year-old Andy Yu. Fairfax County prosecutors had been seeking a conviction on a murder charge, but Deputy Public Defender Dawn Butorac argued that her client was not guilty by reason of insanity.

Butorac said that Kweder, who was a Post All-Met runner in the mid-90s, suffered from schizophrenia and that voices were telling him to kill Yu. She said Kweder and Yu were longtime friends.

Fairfax County police said that Yu was found dead in the basement of the home he shared with Kweder in the 6000 block of Hydrangea Drive and that he suffered trauma to his head and neck.

Another roommate called the police after hearing yells and the sounds of someone being struck inside the home on Nov. 30, 2012. Kweder fled the house after the slaying, touching off a large search for him involving police helicopter and dogs.

“He was insane at the time of the offense,” Butorac said of Kweder. “He was acting under an irresistible impulse.”

Fairfax County prosecutors did not respond to a request for comment.

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