19 year old William Guy Barga Roberts of Coldwater is being held in the Mercer County Jail on 11 criminal charges. According to online records, Roberts, who was arrested this week by the Mercer County Sheriff's Office, faces charges that include possession of and trafficking in drugs, assault, vandalism, theft and burglary.  Roberts is being held on a $100,000 bond pending an appearance in Mercer County Common Pleas Court on Wednesday August 7th.