Wright believed Kleiman was either Satoshi or had a huge stash of coins from the earliest days of Bitcoin. Being the scammer type that he seems to be, when Kleiman died he thought he'd have a chance to get hold of these coins by contacting his father and scoring himself a massive windfall. Also, with Kleiman dying it allowed Wright to jump on his bandwagon and claim that they were both Satoshi, the kind of thing a narcissistic ego would do, to try and stake a claim to any bitcoins Kleiman had.
The more it unfolds, the more it seems like Wright is just a scammer,as his world collapsed as the tax authorities closed in on him and his $50m+ Australian scam from government he saw this Kleiman angle as his only chance to solve his inevitable problem. Now that it's all coming crashing down he will end up bankrupt and maybe in prison.
As a scammer would, he tried to fix one scam by pulling off another, luckily it wont ever work in a world of crypto proof, and he will get what's coming to him. I think this Satoshi claim is the last desperate chance he had as he knew the end was nigh as the authorities closed in.
They're laughing just like hungry dogs in the street
Policemen are hiding behind the skirts of little girls
Their eyes have turned the color of frozen meat
No, no no no, no no no no no no no no,
Satoshi Nakamoto has risen from the grave
Satoshi Nakamoto has risen from the grave