Sicko FedEx driver Tanner Horner had sex with his fiancée hours after murdering little Athena Strand

The confessed murderer made the sickening revelation to a forensic psychiatrist during a spate of prison interviews following his arrest over the little girl's 2022 slaying in Forth Worth, Texas, the doctor testified Wednesday.

The confessed murderer made the sickening revelation to a forensic psychiatrist during a spate of prison interviews following his arrest over the little girl's 2022 slaying in Forth Worth, Texas, the doctor testified Wednesday.