I would include something about this in the second paragraph as the motivation of the gangsters (you can sacrifice the thing about the renegade artificial intelligence). "gangsters who think he knows the location of a master criminal's vault, and who don't realise he can't now remember anything before last Thursday" (ideally better).The villains are formed associates of the pirate/criminal who can't get into the vault and think that Cleaver knows how to do it (if he ever did, he's forgotten how).
And I wouldn't call the same character by two different names in the same line. In something likely to be read at speed, you can't afford risking confusion.