6/30/14 by Perry Miller An Estelline man is facing an aggravated assault charge after a stabbing incident at the Crystal Springs Ranch Rodeo in Clear Lake. It happened around 2:30 Saturday morning. Twenty-eight-year-old Adam James Beynon was arrested on one count of aggravated assault. Authorities have not released further details. The case remains under investigation. Agencies that assisted in the investigation were the Deuel County Sheriff's Office and the South Dakota Division of Criminal Investigation. Aggravated assault is a class 3 felony with a maximum penalty of 15 years in prison and/or a $30,000 fine.