A now-removed road sign caused an uproar from motorists near St. Louis who argued it was insensitive to first responders, especially law enforcement officers.

The sign popped up on I-44 westbound near the Lindbergh exit sometime after January this year. It honored Kevin Johnson, the man convicted and executed for the murder of Kirkwood Police Officer William McEntee in 2005.

It was one of several signs at that interchange that were a part of the Missouri Department of Transportation’s Adopt a Highway program. The program allows groups to agree to maintain and clean up sections of local highways in exchange for signage honoring their work, KMOV reports.

MoDOT says it removed the sign Saturday and say they are investigating the application, but they wouldn’t say who applied for the signage. News 4 filed a Sunshine Act request to find out the answer. A woman claiming to be Johnson’s daughter said in a Facebook post that “people worked so hard to get this sign up.”