(photo added 4:40 pm; newest info at end of the post – info on the man’s age has changed)
ORIGINAL REPORT: Just out of the WSB inbox – from a Seattle Police dispatcher, first time we’ve ever received word quite that way but it’s important to get it out immediately:

Since 1215 we have been searching for a man missing from Camp Long. He is developmentally disabled and is prone to seizures in hot weather. His name is Melvin Jones, white, wearing a yellow baseball cap silver tank top and shorts. He walks stooped over and his tongue hangs out. Please if anyone sees him, hang on to him and call 911.

If we obtain a photo, we will add it here. 4:30 PM UPDATE: We just went down to Camp Long to see what’s up – the King County Sheriff’s Office search-and-rescue team is coming in shortly to help with the active search. Also note that the front gates to Camp Long are temporarily closed because of the search — the park remains open, but the gates are closed, so you can’t drive in. We also were told at the scene that the missing man is actually 54 years old. The photo added above isn’t entirely new but it’s the only one searchers have to work with. 6 PM UPDATE: Just got word (as reported in newest post) that he has been found safe.