5. It was the MI6
A former MI6 employee, Richard Tomlinson, who had been discharged from the agency swore the secretive MI6 spy agency was at the root of Lady Di’s death. He claimed that the agency had been monitoring Diana before her death through Henri Paul, the driver that was at the wheel during the fatal crash. Years later he retracted that statement, saying he must have misremembered, as if the entire situation weren’t already sufficiently suspicious.