Ron DeSantis has signed the death warrant for Billy Leon Kearse, the man convicted of killing Sgt. In 1991, Parrish, a Fort Pierce police officer, had stopped an 18-year-old driver for going the wrong way down a one-way street. As he attempted to arrest the teen for having no license, there was a struggle. Fort Pierce Widow fights for memorial for fallen Fort Pierce police officer Jon ShainmanKearse was sentenced to death in 1997. The death warrant would schedule Kearse, 53, to be put to death by lethal injection on March 3.