Original sentence: , of which he was the mastermind.At that time, he was wanted in relation to the murder of a dozen policemen, Ramesh Chander (a newspaper editor), an attempt on the former Punjab Police Chief Julio Francis Ribeiro, and a major Bank heist in Ludhiana
Edited sentence: At that time, he was wanted in relation to the murder of a dozen policemen, Ramesh Chander (a newspaper editor), an attempt on the former Punjab Police Chief Julio Francis Ribeiro, and a major Bank heist in Ludhiana, of which he was the mastermind