Keokuk man killed in crash near Coralville Posted By: Ben Butler August 31, 2009 @ 7:21 am Today's Local News Tweet Share Email A Keokuk man was killed yesterday in a single vehicle crash in Johnson County. The Iowa State Patrol says 20 year old Nathan J Bowden was northbound on 380, near Coralville at about 1:00 AM when he crossed the median and smashed into a light pole. Police say the accident remains under investigation.