[toogan]

> Too bad it doesn’t say how he actually got found out.

Hm? It does:

> In 1993, with the red flags mounting up, the city authorities hired private investigators to observe Kara, which finally caught him in the act.

[whycome]

That's fairly vague though. What red flags? How were they novel?

[Scoundreller]

Probably the 19th audit in a row where ridership and fare enforcement stats didn’t match up to fares paid.