I mean there was a report of one being let loose and killing a bunch of people. It's a legit fear.
Vyacheslav Samoilov, from a small town in northern Russia, murdered 33-year-old Olga Shlyamina in March 2021 and later dismembered and hid her body. He was jailed for nine years and seven months in April 2022, but is now apparently free after fighting for three months in Ukraine.
Yeah them running free would scare the living shit out of me too.