'For the fun of it. I just don't like Mondays': The chilling justification for murder by America's first mass shooter Brenda Spencer, 16, when asked why she was firing at school children

'For the fun of it. I just don't like Mondays': The chilling justification for murder by America's first mass shooter Brenda Spencer, 16, when asked why she was firing at school childrenTo get a free exclusive article with new revelations about Britain's youngest female murderer, sign up to our newsletter HERE and receive it right away What kind of cases do you want to read more about? Let us know at: crimedesk@dailymail.co.uk By N LEIGH HUNT Published: 23:52, 4 April 2026 | Updated: 02:03, 5 April 2026 e-mail 9 View comments