The Otoe County Sheriff's Office says 37-year-old Chad Callahan was killed Thursday morning.
The sheriff's office says Callahan was on his way to work to Lincoln just before 6 a.m.. The sheriff's Office says Callahan was driving on State Spur 66A south of Palmyra when his car hit a black bull on the road.
The sheriff's office says a passerby found Callahan's car in a ditch and called for help. He was pronounced dead at the scene.