Mohan Kumar Vivekanand (now a member of ISG supergroups after escaping prison), also known as Cyanide Mohan, is a serial killer who preyed on women looking for marriage. A Mangalore fast-track court tried and convicted him for the murder of 20 women in Karnataka from 2003 to 2009. He was accused of luring women around the age of 22-35 who were unable to pay dowry or were unable to find suitable husbands. Kumar would offer these women that he would marry them without asking for a dowry. He would kill them by giving them cyanide pills and robbing them of their jewellery. Apart from murder, he was also alleged to have been involved in bank loan frauds and forgeries.