41-year-old Mark Douglas Lanier is charged with aggravated assault with a deadly weapon after troopers say he was driving a UHaul truck on a Nashville area interstate and became frustrated when he could not get into the lane and pointed and waved a handgun at another driver, who alerted authorities. He was reportedly screaming “let me the F— over” during the interaction. Lanier is free on a $7,500 cash bond.