Gurugram, Dec. 11 -- A 26-year-old woman and her 10-month-old son were killed after a speeding truck mowed them down at the Bilaspur chowk on Delhi-Jaipur expressway on Tuesday evening, police said on Wednesday. The deceased were identified as Nirma Devi and Ayansh. The woman's husband Birju Kumar, 29, was also injured. Sandeep Turan, public relations officer of Gurugram police, said, "A speeding truck hit Kumar's motorcycle at the chowk. His wife along with her son in lap fell towards the carriageway on right and were run over by the truck," he said, adding the truck driver sped away from the spot immediately....