Couch, 32, has evaded capture since Saturday, after he allegedly used an AR-15 to shoot at unsuspecting drivers from a cliff ledge next to Interstate 75, near London, Kentucky, according to authorities.
Sean Higgins, 43, is suspected to have been driving under the influence when he fatally struck Johnny, 31, and his brother, Matthew Gaudreau, 29, while they were cycling on a rural road in their south New Jersey hometown Aug. 29.
Briley Shayne Turner, 25, was originally charged with attempted murder and aggravated battery in connection with the Aug. 18 incident at her Bloomington, Indiana, apartment, court records show.
Travis James Mullis and Marcellus "Khallifah" Williams are scheduled to die Sept. 24.
