The tragic fallout from the horror rampage in Melbourne continued on Saturday with a three-month-old boy succumbing to his injuries, becoming the fifth person to die in the attack. Dimitrious Gargasoulas, 26, has been identified as the man who drove an allegedly stolen maroon Holden Commodore along Bourke Street on Friday afternoon, ploughing through people on the packed sidewalk as they desperately ducked for cover.