NASHVILLE (BP) -- The death of Truett Foster McKeehan, 21, son of Christian rapper TobyMac, was caused by an accidental overdose of fentanyl and amphetamines. The cause was listed on a report from the Davidson County (Tenn.) medical examiner, according to the Tennessean newspaper. McKeehan's death was sudden. Emergency crews found him dead on arrival to his home after a call was made regarding a person in cardiac arrest. The report showed potential nitrous oxide use, known also a laughing gas, as well as Adderall and marijuana. Metro Public Health Department records for Davidson County show that deaths as a...