New Delhi, Jan. 25 -- A CCTV clip emerged showing a man running across a foot overbridge at Malad railway station in Mumbai after a college teacher was stabbed to death in a crowded local train on Saturday, 24 January, according to a report by the Times of India.

Within 12 hours of the incident, the Government Railway Police (GRP) arrested the accused, 27-year-old Omkar Eknath Shinde, a daily wage labourer.

According to the police cited in the report, Alok Kumar Singh, a 33-year-old professor at Narsee Monjee College of Commerce and Economics, was assaulted after a minor argument while getting off the Borivali-bound local train at Malad station around 6 pm.

Investigators said that the argument suddenly escalated, and Shinde allegedly s...