BOULDER — Bad news is on the horizon. Star forward Jabari Walker will not return to Colorado, ESPN’s Jonathan Givony reported on Monday. Walker declared for the NBA Draft but could choose to return to school before the June 1 deadline. That option isn’t off the table but it seems very unlikely following this report. https://twitter.com/DraftExpress/status/1521139613884198921?s=20&t=4HNMObei0Djjz6eRhnFZFQ “Jabari is fully committed…