DNA, forensic evidence tie man to missing ex’s killing, affidavit says

Derrick Randall Jr. has been charged with the murder of his ex-girlfriend Brandi Merrick, with DNA and forensic evidence linking him to her death. Blood matching Merrick's DNA was found in Randall's garage, and items like gloves and a ratchet strap with her DNA were discovered near a potential grave site. Surveillance and phone records tracked Randall's movements to a wooded area where investigators found tire tracks and a depression but no body.