Gunma prefectural police say that the body discovered by a climber on Mount Arafune (elevation of 1422.5 metres), Saturday morning may be that of Yoshito Usui, author of "Crayon Shin-chan". Mount Arafune borders the prefectures of Gunma and Nagano. Full confirmation will be determined on Sunday.
As previously reported, on the 11th of September, Usui-san told loved ones that he was going climbing and return the same day. The following day, after he didn't come home and his family could not get in contact with him, his wife requested the help of police in Kasukabe, Saitama to help look for him. The search extended through neighbouring prefectures Gunma and Nagano. A Nagano police helicopter as well as police dogs were used to search Mount Arafune and surrounding areas along the borders of the two prefectures.
Usui-san lives in Kasukabe, Saitama where Crayon Shin-chan is based.
Because this is not a 100% confirmation, we'll be sure to keep you all posted as soon as we find out more information.
Source
btw, is Crayon Shin-chan still on going in Japan?
I don't know where the manga is, but the anime is around episoed 680.
I, myself are currently at episode 655
I hope the author is okay, i really hope so...
I'm still praying he's safe but if it turns out to be really him, the world just lost a great man who contributed to make it a funnier, weirder and better place.