The death of a Blair County inmate is under investigation by the Hollidaysburg Borough Police. Marcus McCreary, 43, was found dead in his cell Oct. 4. According to reports, he had an extensive medical history as well as a history of drug use. McCreary had been placed in jail in lieu of $2,500 bail Oct. 3. Court records show that McCreary was arrested by UPMC Altoona police the day before he died on misdemeanor charges of possession of drug paraphernalia and defiant trespassing.