This is due to a drug called Flakka.
Lots of users end up naked and eating people’s faces. They essentially become zombies.
Putin was just fucking with everyone.
“When you see a case like this where someone is biting off pieces of somebody's face, could it be flakka? The answer is it absolutely could be a flakka case,” Martin County Sheriff William Snyder said, adding that the suspect from the Monday night double-murder case was "abnormally strong".
https://www.independent.co.uk/news/world/americas/flakka-what-is-it-florida-face-eating-attack-zombie-drug-austin-harrouff-a7195871.html