The animal was found burned and tied up on Cote Brillante back in July. Stray Rescue says part of what led to the arrest were messages posted on the suspect's Facebook page.
Adrienne's family says she's innocent and claim the dog bit her son and had attacked several other people before.
See previous stories:
Mother of woman accused of setting dog on fire speaks out
Dog found burned in St. Louis dies (Graphic Content)
PETA adds up to $5,000 reward in burned dog case
$2,500 offered in burned dog case