Rohtak, June 9 -- A 40-year-old man attempted to kill self after strangulating his two children, aged 17 and 16, to death at a Bhiwani's village, police said on Sunday. The accused is undergoing treatment at a hospital in Bhiwani, said police, adding that his condition is stable. Bhiwani Sadar police SHO Narender Kumar said the accused offered a spiked drink to his children on the intervening night of Saturday and Sunday. "When they were asleep, he strangled them to death. Then, he consumed some poisonous substance. After his sister-in-law came, the accused narrated the incident and was rushed to hospital," the SHO added. A month earlier, his wife had allegedly killed self after dispute with her in laws, SHO said. "He claimed that his parents gave poisonous substance to his wife and then stopped him from filing a complaint. We have booked him in murder case on his mother's complaint," he added....