Glazer is a wealthy and greedy gangster who suffers from paranoia. He met Lynch by a chance and saw potential in him. So he hired him as his collector.
Although later in the game it is revealed that he knows of Lynch's situation with Shangsi. He then breaks the deal and orders his men to kill Kane and Lynch. Kane and Lynch eventually chases him down. He then offer them an opportunity to escape from Shanghai to prevent them from killing him, but he then gets killed by a military sniper.