The family of college student Moey Yun Peng, who was killed after his Mazda CX-5 plunged into the sea from the Penang Bridge following an accident on Sunday, wants the authorities to conduct a thorough probe so that justice is served.<br /><br />His elder brother Dennis, said the family accepted what had happened and hoped the authorities would leave no stone unturned so that justice is done for his 20-year-old brother Yun Peng.