crash.Selfless Hillarie Galazka sacrificed her own life to block the impact of the horror smash to protect her young sons.The 29-year-old died throwing herself in front of her children Hunter and Owen, both five, who were left with minor injuries.The quick thinking mum was forced into the heroic act after driving back to her home in Lincoln Park, Michigan on March 1 when her car was rear-ended on an interstate entrance.The driver who hit Hillarie's car was speeding and fled the scene, reports