A young woman was overjoyed to discover she was pregnant with a "miracle baby" just weeks after her fiancé was killed by his groomsman. Kate Quilligan was set to marry her sweetheart Myles 'Miley' Harty, 20, but he was killed in a horror smash, caused by the careless driving of his groomsman and cousin, Shane Harty . Harty, 21, pleaded guilty to careless driving causing his death on Thursday. The court heard that as Ms Quilligan's grieved, she discovered she was expecting her partner's child.