Here is the latest breaking news from the Associated Press and Newstalk 870

WSU Students Arrested in Connection with Assault on Faculty Member

PULLMAN, Wash. (AP) — Two Washington State University students have been arrested in the March 30 beating that left a professor critically injured. Police said they're looking for two more male suspects. Joshua Nantz of Pullman is due in court today after his arrest last night for investigation of first-degree assault. Madeline Fouts was arrested earlier in the day for investigation of rendering criminal assistance and providing false statements to a public servant. Fouts was not directly involved in the assault on David Warner.

CostCo Revenues Up but Less Than Expectations

ISSAQUAH, Wash. (AP) — Costco Wholesale Corp.'s revenue from established stores rose 4 percent in March, but that was short of Wall Street expectations. The Issaquah company said changes in gas prices and foreign exchange rates hurt revenue from stores open at least a year for the five-week period that ended April 7. Revenue at stores open at least a year is a key gauge of a retailer's health because it excludes results from stores recently opened or closed.

Beaver Dam flooding Oregon Family's Yard

HILLSBORO, Ore. (AP) — A beaver dam on city property is flooding the yard of a Hillsboro couple. Barney Lewis and Laura Biro told KATU when they complained about the same problem two years ago a city crew came out and removed the dam. This year, they say the city doesn't care. Tom Arnold of Hillsboro Public Works says only some landscaping for one property owner is affected. He says the city can't get involved unless there's a threat to life or a home.

Portland Considers Fluoridating Water Supply

PORTLAND, Ore. (AP) — A committee of the City Club of Portland is recommending that the city add fluoride to drinking water to help prevent tooth decay. The full membership of the civic organization will vote on the issue April 19. The Oregonian reports it has endorsed fluoridation five times since 1955. Portland residents will vote May 21 on the issue.