A post on Mr. Kota’s account last night
My trip is over here. I don’t want to suffer anymore and I don’t want to suffer. Lastly, I was happy and enjoyed traveling around Japan Hello
I posted a picture of what looks like a dam and a medical certificate, but the medical certificate says Attention Deficit Multiple Homosexual Disabilities ADHD 
A netizen specified that the location of the photo was Kawaji Dam in Nikko, Tochigi Prefecture, and his acquaintances went there, but there was only a bike and his appearance disappeared
After that, Kota’s acquaintances’ accounts said the body was found downstream of the dam, and police and dam management contacted him 
His acquaintances once said, “If he jumps out of the dam, he’ll die in one shot.”
In fact, there is a record of retweeting a picture related to suicide on his Twitter account, so netizens are guessing that he had depression due to ADHD 
a photograph of him riding a bike around Japan
httpstwittercom20_zxt02kstatus1576502305213382656s=46t=GN3gJLNDASzfGpSX-jM3PA