An 18-year-old former Walmart employee from Maine has been arrested over a Snapchat post that showed him posing with a hunting rifle and ammunition outside his ex-workplace with the caption, “Lewiston part 2.” The baby-faced suspect, identified by the Somerset County Sheriff’s Office as Michael Bowden, was charged with misdemeanor domestic violence terrorizing and felony aggravated reckless conduct. Bowden’s selfie showing him brandishing a Savage bolt-action rifle was taken in the parking of the Palmyra Walmart, officials said. “He took a picture of himself in a vehicle in the Walmart parking lot, and in that picture you can see a...