A Bend man identified as 21-year-old William Wight was arrested Thursday morning. He is accused of posting a threat to Bend Senior HS on a social media site. Lietuenant Juli McConkey with Bend PD, says they got a quick heads up about the threat from the school's social media manager. Wight was arrested at his home where police seized a shotgun. He was jailed on charges of Disorderly Conduct, Unlawful Use of a Weapon, and Menacing. Wight will be taken to St. Charles for evaluation.