RALEIGH — Miguel Angel Martinez was already serving time for attempted murder when he was transported to Wake County this week to answer new charges of felony assault.

Martinez, 26, was convicted Tuesday and sentenced to nearly five additional years in prison. On Wednesday, Wake County Public Safety Center officials charged Martinez with slashing the throat of a fellow inmate with a razor while the two were eating breakfast.

The victim wounds “did not rise to the level of serious injury,” according to an arrest warrant filed Wednesday at the Wake County Magistrate’s Office. “However, the court considers the defendant to be a danger, and that the injuries could have been significantly worse.”

“Martinez got up, walked behind the victim and cut the victim’s throat with a razor blade,” according to the arrest warrant.

Martinez has been a deadly danger in the past.

On Aug. 11, 2002, he convicted of attempted murder and a variety of other charges in Edgecombe County and sentenced to more than 75 years in prison.