BATON ROUGE - New documents filed by law enforcement say empty bleach bottles found inside a suspected killer's home helped tie him to the murder of Baton Rouge icon Sadie Roberts-Joseph.

A search warrant from the Baton Rouge Police Department suggests the bottles found inside the Goudchaux Street property owned by Roberts-Joseph were used by Ronn Bell when he dumped her body earlier this month. 

The beloved activist was found suffocated in the trunk of her own car, her body doused in bleach, on July 12. The documents say that small black fibers found around Roberts-Joseph's body matched fibers found on the empty bleach bottles.

Bell, who was renting the Goudchaux Street property from Roberts-Joseph, was arrested last Tuesday and charged with first-degree murder. Investigators believe he killed Roberts-Joseph after she tried to collect more than $1,200 in overdue rent payments from him.

Bell says his DNA was planted at the crime scene, court documents suggest. The filing says DNA evidence, including hair and saliva, was taken from him "without his consent" on the day of his arrest. His attorney has requested to be allowed to bring a cell phone into the jail to take photos of where officials took "chunks of hair" from his head. Bell's attorney says further investigation may show that the hair found on Roberts-Joseph's body may actually be the hair that was taken just after the July 15 arrest.

Bell was previously convicted of raping a 9-year-old in 2007. However, Bell was out of prison after only seven years because of a plea deal.