Mother, 24, high on cannabis may have suffered epileptic fit seconds before she crashed head-on into van killing herself and her five-year-old son, inquest hears Rebecca Smith’s BMW ploughed into Mercedes on opposite side of the road Her five-year-old son died at hospital and she lost her fight for life next day Inquest into her death heard she may have suffered epileptic fit at the wheel Her son Kyle, who survived the crash, says she had a fit while she was driving A drug-driver who ploughed