Just one man racked up millions of dollars in suspicious transactions at several Toronto-area casinos, CTV News Toronto has learned.

Branavan Kanapathipillai’s more than $4 million deposits and withdrawals over several years raised flags at various casinos, but it wasn’t until last fall that a nearly $100,000 cash buy-in was seized in Niagara Falls, court documents obtained by CTV News Toronto say.

His buy-ins were a significant portion of the total suspicious transactions reported across Ontario gaming facilities, which roared back from a pandemic low of $116 million to $372 million last year, records show.