Who was UCLA shooter Mainak Sarkar? What we know about the ex-IIT Kharagpur alumni

The gunman of the shooting at the University of California, Los Angeles was on Thursday identified as an Indian doctoral student Mainak Sarkar. 

Sarkar, an engineering student in the University, shot and killed a 39-year-old engineering professor William Klug on Wednesday in the university premises causing a lockdown. He had expressed an intense dislike for the professor on his blog calling him a "sick person" and asked the students to "stay away" from the professor."

Here's what we know about the UCLA shooter Sarkar:

1. Mainak Sarkar finished his BTech in Aerospace Engineering from Indian Institute of Technology (IIT), Kharagpur in the year 2000. He later worked as a software developer in Infosys for a year.

2. Sarkar then went to the University of Texas at Arlington in 2002 and worked as a Research Assistant there. After his stint in Arlington, he started working as a Software Developer in Lucid Technologies LLC.

3. Mainak then joined the University of California, Los Angeles (UCLA) as a Teaching Assistant for undergraduate courses in  Mechanical Engineering where he met the engineering professor William Klug.

4. The engineering professor had been the target of Sarkar's ire for quite some time on social media. He once wrote:

 

William Klug, UCLA professor is not the kind of person when you think of a professor. He is a very sick person. I urge every new student coming to UCLA to stay away from this guy. He made me really sick. Your enemy is my enemy. But your friend can do a lot more harm. Be careful about whom you trust

5. Reports state that a 'kill list' was found at his home in Los Angeles where a woman's name was mentioned too. The woman was later found dead in Minnesota.