James Mygatt was staying at a Blue Springs motel Tuesday when another guest asked him to turn down his stereo.
Instead of honoring the request, federal prosecutors allege, Mygatt got a gun and pointed it at the man who complained.
The alleged victim contacted police, and Mygatt, 25, who is a convicted felon and cannot legally possess a firearm, is now charged in U.S. District Court in Kansas City with a felony crime that carries a penalty of up to 10 years in prison.
The incident occurred just after 8 a.m. Tuesday at the Welcome Inn in the 3300 block of N.W. Jefferson Street.
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After Mygatt was arrested, police searched his motel room and found two handguns, more than 100 rounds of ammunition and a bottle containing 150 methadone pills, according to court documents.