I mean that he is a swindler.

我的意思是说，他是个骗子。

youdao

We knew him to be a swindler.

我们知道他是个骗子。

youdao

I swear he's a swindler.

我肯定他是一个骗子。

youdao

One fellow went to jail for soliciting funds without mentioning he was already a convicted swindler.

FORBES: Fraud per capita

Emerging from the world of penny stock operators, the company survived a cast of dubious financiers during the late eighties and early nineties: a Genovese crime family-associated broker, a Ponzi schemer and a stock swindler, whose firm inspired the movie Boiler Room, none of whose wrongdoings was related to BioReference or Grodman.

FORBES: #17 Bio-Reference Laboratories

The SEC has brought stock fraud charges against convicted stock swindler Tommy Quinn, alleging he was behind a scam called Sundance Gold Mining Exploration Inc.

FORBES: Magazine Article