by the time Frazier was questioned by the DPD approximately nine hours after the assassination that he knew Oswald was a suspect.
NINE HOURS??? The DPD detectives went to the hospital in Irving where Linnie Mae told them Buell was visiting his step father. That was about two or three hours after Lee had been dragged from the Theater.
Oswald was picked up at the Irving Hospital after 6PM and interrogated by Fritz after 9PM. So do the math.
From the Bugliosi book:
5:57PM. Detectives Stovall and Ross turn their attention to locating Wesley Frazier. If for no other reason than that he had driven Oswald to work that day and his present whereabouts are unknown...it takes detectives nearly forty-five minutes to determine that he is actually at the Irving Professional Center, a medical facility.
9:00PM. Detectives Stovall and Rose lead Wesley Frazier, his sister, Linnie Mae Randle, and their pastor, Reverend Campble of the Irving Baptist Church, into the back room of Homicide Robbery. Since being arrested an hour and a half ago, Frazier has been very cooperative with police, allowing officers to search his car and his home, where they confiscated a .303 caliber rifle, a full clip, and a partial box of ammunition. Captain Fritz comes back and questions both Wesley Frazier and his sister.