At the end of Season 8, Brennan finally decides to marry Booth. However, their plans are ruined when a vengeful Christopher Pelant blackmails Booth, threatening to kill five random people if Booth marries Brennan. Booth calls off the wedding, but does not explain the real reason to Brennan. Brennan is devastated but pretends to be fine with this. In the season 9 premiere, Brennan fears that since Booth turned down her proposal, she fears that the love from their life is fading. After talking with bartender Aldo Clemens, a former priest and Army chaplain Booth confessed to, she realizes that it was uncharacteristic for Booth to suddenly cancel the wedding as he believed in marriage and that he likely had a legitimate reason to do so. Despite her colleagues' anger at Booth, she decides to stay with him, telling him that she understands that he has his reasons and has faith that he will resolve the issue. In the episode 4, "The Sense in the Sacrifice", after Booth singlehandedly tracks Pelant down through an abandoned building and kills him with a single gunshot, he reveals to her that Pelant had blackmailed him. Pelant had threatened to kill five innocent people if Booth continued with the wedding or went to the police or FBI. At the end of the episode he proposes and she happily accepts; unknown to them, Caroline, Angela and Hodgins witnessed it via the security cameras. In "The Woman in White", Booth and Brennan marry at a small garden ceremony outside the Jeffersonian.