Janab-e-ali, your quote was part of my post. Thank you for the additional information. 
I was wondering if you perhaps know the correct year. I’ve read more about this event online and some sources say the year was 1980 while others say 1979.
I don’t mind going a bit off topic, but I want to understand why and how a different topic came in a discussion. I need to understand why it’s being brought up.
Now you’ve explained why you made that comment, I understand much better and you’re right, unfortunately every religious group has done something negative in history, intentionally or unintentionally.