The new alleged murder evidence is a smokescreen. Police experienced in criminal investigations were the first on the scene. They thought it was an accident from what they saw.
Moreover Bob is staying at a nice hotel, if there was a murderer they can check the cameras and show us the suspect. Instead the initial reports were saying the security footage showed Bob was alone.
If the police and hotel are covering up a murder, the only way for a cover up that large would be if Bob went against the Kabal itself which he never did. Bob Saget was a Hollywood sell out who never turned on Hollywood or started naming names. So no, he wasn't murdered, except by Pfizer.
His Suicide Squad implant was detonated.