ETTRICK, Wis. — A 76-year-old man. John Larson. was found dead pinned under his all-terrain vehicle in a field up Larson Coulee off the dead-end Francis Lane. This was about 6:25 p.m. near the Jackson County line Trempealeau County Sheriff Brett Semingson declined to release the man’s name, per his habit, but the death was confirmed by family.