The Knox County District Attorney’s Office has released the findings of its investigation into the death of Robert Bailey, who died Jan. 6 in the custody of Knoxville Police.

The report from District Attorney Charme Allen’s office said Wednesday that no criminal charges will be filed in his death after determining Bailey, 41, died of a drug overdose after swallowing two bags of narcotics while in a police transport wagon.

Two bags of controlled substances were removed from Bailey’s esophagus during a Jan. 7 autopsy. One bag was intact, but the second bag was open. Toxicology results showed Bailey had fentanyl, 4-ANPP, methamphetamine, cocaine, and hydrocodone in his system.

Medical examiners issued the final autopsy report Jan. 25, ruling the cause of Bailey’s death was, “acute fentanyl, methamphetamine, cocaine, and hydrocodone toxicity with other significant conditions of hypertensive and atherosclerotic cardiovascular disease.”

The manner of death was determined to be an accident.