RCT 70: Penance 1.

The Roman Catechism of Trent (RCT) p. 278-286.
The Sacraments, ep. 22.
-My Site: https://www.padreperegrino.org
-Ex-gangster Dominic Morrow was shot and went to hell. But God gave him another chance on earth when he was resuscitated. Even though he is not Catholic, he is now a Christian, and his description of hell lines up well with the old-school Catholic mystics:
https://www.youtube.com/watch?v=gAJShDqxM1E
-15 Mortal Sins most miss: https://www.padreperegrino.org/2019/08/mortalsins/