NAVI MUMBAI, Jan. 4 -- The brutal daylight murder of Shiv Sena party worker Mangesh Sadashiv Kalokhe last month was a pre-planned contract killing worth Rs.20 lakh, driven by personal and political rivalry, the Raigad police said on Saturday. Twelve people, including two women, have been arrested so far in the case, officers said. The police are still searching for one more suspect, whose identity has not been disclosed. Kalokhe, a resident of Saibaba Nagar in Khopoli, was hacked to death on December 26 near the Jaya Bar junction, shortly after dropping his daughters off at school.P3...