At approximately 1855 central time, a Piper PA-28RT-201T crashed while maneuvering near Marianna. The pilot and his passenger were killed. The pilot called for a weather briefing for a flight from Little Rock to Tunica, Miss., and was advised of low ceilings and marginal VFR along the route of flight. The pilot responded, Ill be heading to Tunica VFR. Guess Ill be scudding it, it looks like. The airplane was found to have hit a 60-foot tree about 40 feet up, at an elevation of less than 300 feet msl.