Also consider that Ted Bundy was getting marriage proposals from young women, while on trial for dismembering other young women and keeping them in his fridge, to later have sex with.
Young women like bad boys, not boring old men.
Same as the Thai that shot the Iranian dead in the nightclub, he knew he couldn't beat him during the fight so had to pull out his gun and shoot him at point blank to win and not lose face.
Losing the next 2 years in prison doesn't matter.
Or perhaps 6 months.