Just four days after police in Wasilla arrested Sarah Palin's oldest son Track on domestic violence charges, the former governor of Alaska got a chance to share some good news on Wednesday as she announced her daughter Willow was engaged to be married. 'Good things happen!!! My happiest baby girl Willow and Ricky, last night at Rockefeller Center!!! So, so happy,' wrote Sarah. Willow will be tying the knot with her longtime boyfriend Ricky Bailey, who she has been with for the past four years.