Leissner’s Many Confessions Threaten Case Against Goldman Banker

For a guy who isn’t on trial, Tim Leissnerhad a lot to confess.

The former Goldman Sachs Group Inc. banker spent 10 days on a witness stand in a Brooklyn courtroom this month admitting to a raft of lies -- to his wives, to his bosses and to his business partners.

Leissner, 52, is the star witness in the U.S. government’s case against Roger Ng, his former subordinate and the only Goldman Sachs employee to be brought to trial over billions of dollars that were looted from 1MDB. But the former Southeast Asia chairman for Goldman revealed ...