Four members of the Guru Satam gang, including Vijay Thopte, who had jumped parole while serving a jail sentence for murdering trade union leader Datta Samant, were on Thursday arrested from Navi Mumbai, said the police. Thopte, 36, was carrying a reward of Rs 10,000 on his head, the police said, adding that he had been absconding since 2005. Acting on a tip-off, the police laid a trap today afternoon at Raghu Leela Mall near Vashi railway station.