FREMONT (CBS SF) — Doctors successfully reattached a Fremont man’s severed thumb after his roommate allegedly cut it off during an altercation. After a week-long search, the roommate was arrested, Tuesday, on charges including mayhem.

According to police, it all began last week, when officers responded to a report of an attack in the 34000 block of Blackstone Way and discovered a man whose thumb had been cut off with an unknown object during a fight.

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Fremont Fire Department emergency responders collected the body part and transported it, along with the victim, to a nearby hospital.

Investigators began searching for the suspect, 28-year-old William Robinson, and found him on Tuesday at the EZ8 Motel, in Newark, where he was taken into custody.

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Police said Robinson is also facing charges of robbery and assault with a deadly weapon in connection to an incident, last June, where he allegedly rammed a witness with his car after stealing goods from Walmart.

According to police, Robinson has a long history of arrests on charges including assault with a deadly weapon, possession of switchblades and metal knuckles, domestic violence, drugs, stolen vehicles, and identity theft.

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Robinson was booked into Santa Rita Jail. His arraignment is scheduled for February 4.