New Delhi, July 17 -- At least seven schools across Delhi received bomb threat emails on Wednesday-the third consecutive day of such hoaxes in the city-triggering chaos and panic among parents, students, and staff. Investigators, meanwhile, said they tracked down a 12-year-old who allegedly sent one hoax threat this week. The schools targeted on Wednesday included St Thomas School in Dwarka (which also received a threat on Tuesday), Vasant Valley School in Vasant Kunj, Mother's International School in Hauz Khas, Richmond Global School in Paschim Vihar, Sardar Patel Vidyalaya in Lodi Estate, and Prudence School in Pitampura and Ashok Vihar. Following the alerts, the campuses were evacuated, students were sent home, and bomb detection and disposal squads, along with Delhi Fire Services and local police, conducted intensive searches. All threats were later declared hoaxes....