Jewelry store robbery or hammer murder. Ill see if I can find some articles.

One year two students robed a jewelry store, one of them was rich and fled the country, the other one went to jail. I think the kid came back.

A different year there was a girl who claimed she had been raped at a party, the girls boyfriend iirc and some of his friends lured the person she said did it into some woods. Bludgeoned him to death with a hammer. The girl later said she lied.

Jewelry store: https://archive.seattletimes.com/archive/?date=20020427&slug=gordon27m

Hammer: https://products.kitsapsun.com/archive/2003/09-15/258176_sex__lies_and_a_friendship_s_vi.html