Microsoft says CEO Steve Ballmer will retire within the next 12 months. No successor has been named. Microsoft's stock is up sharply. We talk to Todd Bishop, editor and co-founder of GeekWire. // In court yesterday, Staff Sgt. Robert Bales apologized to his family, fellow soldiers, and to the families of the 16 people he killed. // President Obama wants to improve college affordability by changing the current college rating system to tie federal financial aid to performance. // San Diego mayor Bob Filner is expected to resign today. But many expect the settlement will include the city paying at least part of Filner's legal fees.