Marc Agnifilo of Brafman & Associates on Tuesday began cross-examining former Goldman Sachs partner Tim Leissner, seeking to demonstrate to jurors that they should doubt Leissner’s testimony due to his extraordinarily complicated personal life, which—according to his questioning—has included multiple incidents of bigamy and hidden extramarital affairs.

Agnifilo represents Malaysian-born banker Roger Ng, who worked under Leissner for years at Goldman Sachs. Ng, Leissner and Malaysian fugitive Jho Low have been accused of conspiring to commit a multibillion-dollar scheme centered on 1MDB, a Malaysian economic development fund.