SHAWN N. ANDERSON, United States Attorney for the Districts of Guam and the Northern Mariana Islands, announced that defendant Mark Mayo, age 43, from Barrigada, Guam, was sentenced in the United States District Court of Guam to 120 months imprisonment for Conspiracy to Distribute Fifty or More Grams of Methamphetamine Hydrochloride and Attempted Possession of Methamphetamine Hydrochloride with Intent to Distribute, in violation of 21 U.S.C. §§ 841(a)(1) and 846.