It sure does.
If he was involved in money laundering, and there is circumstantial evidence that suggests this possibility, he could have been perceived as a threat by anyone who was also involved in the transactions.
Money launderers generally perform this as a service to others.
He was a millionaire. If he made millions through illegal activities, he was a high level criminal and was involved with dangerous people. It may sound far fetched but I’m not sure that it sounds more far fetched than the story of legitimately making 5 million dollars through online gambling. What’s more likely? I don’t know.