Shannon Marie Sherrill : 6 years old Missing since 10-5-1986 from Thorntown Boone County Indiana... Classification: Non-Family Abduction..The Doe Network : Case File 283 DFIN...http://www.doenetwork.org/cases/283dfin.html..The 6 year old was last seen wearing a white sundress with blue trim & she was barefoot....Shannon Sherrill was last seen at 1:30 PM on October 5 1986 in Thorntown in Boone County Indiana... She was playing in her family's yard with several other children at the time she disappeared.....Penton is the Prime Suspect concerning this case..