This is the case of Cody Johnson and Jordan Graham, after being married for 8 days Jordan shoved her new husband off a cliff. The information on this case was pulled from these sources, to learn more check out these links: 

https://medium.com/chameleon/a-newlywed-bride-pushed-her-husband-off-a-cliff-8-days-after-their-wedding-4c3b4c5a058c

https://www.nbcnews.com/news/crime-courts/bride-who-pushed-new-husband-over-cliff-gets-30-years-n64021