8 year old boy dumped in basement for 24 hours without food or water because he spoke during megilla reading

This happened over a decade ago but still fresh in the mind of the now grown up Amrom Kruman. His father, Avraham Shlomo Kruman, a Neturei Karta guy, and his mother a Satmar lady locked up their 8 year old Amram in a basement because he dared speak during the reading of the Megillah on Purim!
They didn't even come down once to see if he is still alive.