The Minnesota Landscape Arboretum in Chaska was locked down for part of the day Tuesday after an early morning jogger reported a white male in his 50s, average height and about 300 pounds not wearing any clothes and with a hatchet in his hand. Authorities say the caller later saw the same man in black gym shorts and a gray t-shirt — and staff saw a man fitting the description carrying a small wireless speaker and a cell phone. Law enforcement couldn’t locate the suspect. They say at no time were there any threats or physical contact.