When Breeanna Till lost her husband, Sgt. Brett Till, killed while serving for the Australian military in Afghanistan in 2008, it felt like her whole world was closing in. The couple was also expecting Ziggy, their first child.  Sgt. Till’s death left damaging ripple effects, leaving mental anguish for his other children from a previous marriage, too.  Eventually, Till, along with other veterans and their families, found solace in an unexpected place – the racetrack.   Two years ago, Till