The remains found more than a decade ago were identified as Carol Hemphill, a 40-year-old mother from St. Louis. Police think it could be related to a serial killer.
The mother of Clayton Cope, who was killed in the tornado at the age of 29, continues to work with state legislators trying to tackle building standards.
Prosecutors said the shooting stemmed from ongoing tensions over different coaching styles for The BadBoyz football team of 9- and 10-year-old players.