On a leafy Connecticut road in the summer of 2024, would-be kidnappers pulled a couple from their Lamborghini SUV, beat them in broad daylight and threw them into a van, only to be arrested shortly thereafter as multiple witnesses, including a passing off-duty FBI agent, called police. The investigation would lead police to some sensational findings. The attack turned out to be linked to a $245 million Bitcoin heist the month before involving the couple’s son. And this week, a California cryptocurrency mogul who authorities say called himself “The Godfather” and had previously hired off-duty sheriff’s deputies to strongarm his...