Charges are allegations only. All arrested persons are presumed innocent unless and until proven guilty beyond a reasonable doubt.

SALT LAKE CITY (ABC4) -- Two inmates at the Utah State Correctional Facility have been charged with aggravated assault after allegedly stabbing who they say was a rival gang member. The victim was hospitalized for his serious injuries.

Michael Thomas Webb, 20, has been charged with aggravated assault with injury by a prisoner, possessing a weapon as an offender, riot causing substantial or serious bodily injury, criminal conspiracy, and prohibited dangerous weapon conduct.

Efrain Castillo, 43, was charged with aggravated assault with injury by a prisoner, riot causing substantial or serious bodily injury, and criminal conspiracy.

According to documents, a U

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