https://apnews.com/4b8b706507212922e3df082cd89b2139

IOWA CITY, Iowa (AP) — A man charged with killing an Iowa State Patrol sergeant was initially pulled over after being spotted speeding and illegally driving without an ignition interlock device that tests whether someone has been drinking alcohol, a police spokesman clarified Wednesday.

Authorities previously said that Michael Lang was pulled over April 9 by a Grundy Center officer for suspicion of driving while barred. Division of Criminal Investigation assistant director Mitch Mortvedt said Wednesday that was a misstatement — that Lang wasn’t barred from driving but was required to have an ignition interlock device in his vehicle, because of his history of drunken driving.