Becker knew that Helen wouldn't sit by and let Nick get married. His gut told him that she was going to ruin the wedding. He had to make sure that nothing happened, so while Jenny planned the wedding he discreetly planned the security. He told all his men to come armed and ready.
His vigilance paid off, Helen was found trying to plant a bomb in the bride's waiting room. Lt. Jackson said she wasn't happy but at least there was no longer a threat coming their way. Jenny was going to have the perfect wedding Becker made sure of it.