Mathura violence: Who is Ram Vriksha Yadav?

A day after violent clashes broke out in Mathura, killing 24 people, police started looking-out for Ram Vriksha Yadav, the alleged mastermind behind the conflict. Trouble started when police tried to evict close to 3,000 people from Jawahar Bagh park, two years after they had occupied the park in a prolonged sit-in, led by Yadav. Police claimed they were fired upon, unprovoked, by the squatters and said they later found a cache of arms and spent bullets from AK-47 rifles.