'' A police artist 's sketch of her was widely circulated in the news media and prompted a call to Galveston police from Riley 's grandmother in Ohio , who had not seen the girl in months . On Saturday , police arrested Trenor and Zeigler on charges of injuring a child and tampering with physical evidence , the sheriff 's department said . Their bonds were set at $ 350,000 each . The affidavit , obtained by CNN , says when police interviewed Trenor on November 23 , she `` gave a voluntary statement on video with her attorney present in which she describes her involvement , with Royce Zeigler , in the physical abuse , death and disposal of the remains of her daughter , Riley Ann Sawyers . '' Trenor 's statement said on July 24 , she and Zeigler both beat the child with leather belts and held her head under water in the bathtub . She said Zeigler picked the girl up by her hair and also threw her across the room , slamming her head into the tile floor . After her daughter died , Trenor 's statement said , she and Zeigler went
-LRB- CNN -RRB- -- Before dying , 2-year-old Riley Ann Sawyers was beaten with belts , picked up by her hair , thrown across the room and held under water , according to an affidavit from the Galveston County Sheriff 's Office . Police believe 2-year-old Riley Ann Sawyers is `` Baby Grace . '' The affidavit says the girl 's mother , Kimberly Dawn Trenor , described to police how her daughter died and was put in a plastic storage box that Trenor and her husband , Royce Zeigler , later dumped into a Galveston waterway . Trenor told police Zeigler tried to commit suicide the weekend before Thanksgiving , and wrote a note that said , `` My wife is innocent of the sins that I committed . '' The body of the then-unidentified toddler was found on October 29 . A fisherman found Riley 's body stuffed inside a blue storage container that washed up on an uninhabited island in Galveston 's West Bay . A medical examiner said the child 's skull was fractured , and a forensic dentist estimated her age at 2 to 3 years . Police dubbed the child `` Baby Grace .