Premium Content  A scorned ex who threw a molotov cocktail that caused $20,000 damage to the cars of his former partner and her new boyfriend will spend 12 months behind bars for the "vengeful" attack. Burpengary DJ Corey James Hartas, 28, was drunk when he drove to his ex partner's Bald Hills house and threw a petrol bomb in her driveway while she slept inside with her six-year-old son and new partner, the Brisbane District Court heard. Prosecutor Carly Whelan said Hartas was upset after his one-month relationship ended when he drove 20km with a container of fuel and fashioned the bomb out of a Smirnoff vodka bottle.