The sister of a man who killed four police officers in Washington has been released early from the state women's prison at Purdy.

LaTanya Clemmons is the sister of Maurice Clemmons, an ex-convict who gunned down four Lakewood officers in November 2009 at a coffee shop. He was shot to death by police in another town two days later.

LaTanya Clemmons was sentenced to five years for rendering criminal assistance to Darcus Allen, who police say drove the getaway car for Maurice Clemmons. Authorities say she gave Allen $50 and drove him to a motel, where he hid out.

LaTanya Clemmons on Monday was released early for good behavior.

A state appeals court threw out her conviction June 22, saying there was no evidence she knew Allen was an accomplice. Pierce County Prosecutor Mark Lindquist is appealing that decision. He says the appeal would have kept her in prison if not for the early release.