June 24, 2016:
S. Swathi, an Infosys employee, was hacked to death in full public view at 6.40 a.m. while she was waiting on the platform of Nungambakkam railway station to board a suburban train to go to her office.
The station master of Nungambakkam railway station lodged a complaint with the Government Railway Police and the case was later transferred to the Nungambakkam police.
June 25:
The police released a visual of a man captured in CCTV footage from cameras installed nearby.
July 2:
After a manhunt for the accused in several places across the city, the police zeroed in on P. Ramkumar , who was picked up from his native village in Tirunelveli district.
July 3:
He was brought to Chennai and lodged at the Central Prison, Puzhal.
September 18:
Ramkumar 'committed suicide' inside Puzhal prison by 'pulling and biting into a live electric wire.'
January 2017:
Chargesheet filed at the Metropolitan Magistrate Court.
February 2017:
The Magistrate ordered the formal closure of the case since the accused had died.
