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Charges: Sex offender attacked staffer at Moose Lake facility

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Carlton County prosecutors have charged a sex offender at the Minnesota treatment facility in Moose Lake with attempted murder in an alleged attack earlier this week. 

George Mack Jr., 43, attached a razor blade to a toothbrush and lunged at a clinician sitting in a chair, the charges say. 

Prosecutors say surveillance video captured the incident and that Mack is heard to say, "I'm in charge here," as he tried to slash the victim's throat. 

The man was able to jump out of the chair and run away from Mack. Prosecutors say Mack punched and injured a guard before he was subdued. 

They also say Mack inflicted two gashes on the clinician's throat. 

Prosecutors charged Mack with first-degree premeditated attempted murder and fourth-degree assault.

Correction (Feb. 1, 2019): An earlier version of this story described Mack as a Moose Lake prison inmate and his alleged victim as a guard. Mack is in the state sex offender treatment facility in Moose Lake and the alleged victim is a clinician.