You probably mean the Branch Davidians and David Koresh ?
Or the Heavenly Something ?
Just like Mendhak here they're not too shy to promote suicide.
With the promise of salvation you shed of your mortal coil or something along those lines.

Well, here's a newsflash buddy : suicide is suicide and you can be charged with assisting suicide or manslaughter.

As if phaedophilia wasn't bad enough ...

Nutters and arseholes, the lot of them. Admit them to the nearest mental institute