Top overall recruit Michael Porter Jr. received a release from his letter of intent from Washington on Thursday, according to the school.
Porter sought his release after the Huskies fired coach Lorenzo Romar earlier this month.
Porter, who was named Gatorade National Player of the Year on Wednesday, reportedly is considering a transfer to Missouri.
He also confirmed that his father, Michael Porter Sr., has been offered an assistant coaching position by recently hired Missouri coach Cuonzo Martin.
Porter Sr. was hired as an assistant by Romar last year two months before Porter Jr. verbally committed to Washington.
The Porters are from Missouri and Porter Sr. was a former assistant coach for Missouri's women's basketball program.
The 6-foot-10 Porter Jr. addressed the situation on a conference call on Wednesday.
"To be able to go back (to Missouri), I know those Mizzou fans are hungry -- and I've been shown a lot of love from Mizzou fans," Porter Jr. said. "It could be something real, real special just to come home and do my thing there, it would special."
Washington hired former Syracuse assistant Mike Hopkins to replace Romar. Porter Jr. said he still will consider the Huskies but wants to start over and weigh which school is best for him.
His brother, high school junior Jontay Porter, previously decommitted from Washington after the firing of Romar.
Sisters Bri and Cierra Porter play for the Missouri women's team. Porter Sr. is married to the sister of Missouri women's coach Robin Pingeton.
Porter Jr. is considered a one-and-done college player wherever he winds up. He is projected as the No. 1 overall draft choice in the 2018 NBA draft by nbadraft.net.
He said he remains stunned by Romar's firing at Washington.
"I was shocked," Porter Jr. said. "I thought we had something special coming to Washington."