M. Jaishankar, born in 1977 in Kanniyanpatti village, Salem district, Tamil Nadu, India, worked as a truck driver. He was married and had three daughters. His occupation required frequent travel across various states.

Between 2008 and 2011, Jaishankar embarked on a series of heinous crimes, primarily targeting women in Tamil Nadu, Karnataka, and Andhra Pradesh. His modus operandi involved approaching women in isolated areas, often near highways, under the pretext of seeking assistance or offering help. He would then sexually assault and murder them, sometimes using weapons like machetes. ​

One of his most notorious crimes occurred on August 23, 2009, when he raped and murdered a 39-year-old female police constable named M. Jayamani in Tamil Nadu. This particular crime intensified the police's efforts to apprehend him.

Jaishankar was first arrested on October 19, 2009, but managed to escape custody on March 17, 2011, during a court transfer. Following his escape, he continued his criminal activities, committing additional rapes and murders, notably in the Bellary region of Karnataka.

He was recaptured on May 4, 2011, after attempting to assault a woman in Karnataka, where villagers apprehended him and handed him over to the authorities. Despite heightened security measures, Jaishankar escaped again on Septem ber 1, 2013, from Bangalore Central Prison but was re-arrested on September 6, 2013.

On February 27, 2018, Jaishankar was found dead in his prison cell at Bangalore Central Prison, having committed suicide by slitting his throat with a shaving blade.