Additional district and sessions judge Parmeshwar Prasad convicted Jitendra Kushwaha, 35, a resident of Gurmiya Gopal Tola in Kudwa Dilip Nagar village under Kasya police station limits, for the murders of his wife, Leelawati, 31, and their three sons — Akash, 8, Vikas, 6, and Rinku, 4.