A southwest Iowa man is dead following a tractor rollover accident in Taylor County. According to the Sheriff’s Department, 54-year old Leon Francis “Lynn” Balster, of New Market, died when his tractor rolled on a steep hillside. Balster, who was mowing on the hillside, was pinned beneath the tractor as it came to rest, and died at the scene. The accident happened at around 9:30-a.m., Saturday.