Probably treating as “forgetting to write down their steps” before jumping to cheating; presumably you’ve been teaching them to show their work and they forgot to do that here.
Give them the chance to show you how they solved it on the board, if they can then great! Give ‘em the points and send em on their way. If not, then give them a zero for that part of the test and move on.
The “surprise” is because he’s wanted, and is being actively hunted by the Spanish police.
An officer even got arrested for helping him escape, per the article.