Thomas Blood evaded punishment for this crime as he had with the murder of the Duke of Ormonde. He managed to sweet talk his way out by replying "I would endeavour to deserve it, Sire!" when Charles II asked "What if I should give you your life?"
Eventually though the Irish adventurers luck finally ran out, he died following his stint in prison after being convicted of making defamatory remarks about his patron the Duke of Buckingham for which he was also fined £10,000.
Following his release he died on August 24th 1680 - he didn't pay his fine!