那个骗子假装成慈善家，其实是个专门欺骗老人的骗子。

The man pretending to be a philanthropist was actually a ___deceiver who targeted elderly people.

那个友善的男人原来是个狡猾的骗子，专门偷别人的钱。

The friendly man turned out to be a cunning ___deceiver who stole people's money.