Yes, it IS all a bit ludicrous, isn't it... but it does suggest that 'people' didn't want him exposed while alive because of who else he might bring down with him. Dead men don't talk. It's the only explanation that makes sense imo and the one that makes me very cynical about these 'investigations' and their findings.
I'm a bit cynical too but probably shouldn't judge until its all said and done, there's still ongoing investigations. I guess its wrong to judge without knowing the full details but I hope everyone who should be held to account and is able to be held to account (ie anyone who isn't dead etc.), is.