Dawgman.com was able to confirm through multiple sources that Cook did indeed commit to Washington while on his visit to check out the campus this weekend.
Cook chose Washington over offers from Oregon, UCLA, Arizona, Cal and Utah among others.
As a junior last season, Cook posted 46 receptions for 703 yards and seven touchdowns on offense.
Cook is the second commit of the day of the Huskies who added four-star TE Hunter Bryant from Eastside Catholic just across the lake in Sammamish.
We'll have more from Cook after he finishes up his visit, so keep checking back with Dawgman.com for more on this developing story.