Prodical son - squandered a fortune living a debauched life, came home when the money ran out - thrown a banquet.
David - had an innocent man killed to cover adultery - kept his position as king but had his baby killed.
Achan - theft - fessed up and was stoned and burned along with his entire family.
So basically pick an example and be as forgiving or harsh as you want.
That's a pretty wide span of outcomes. No wonder Watchtower is all over the place with it's judgements.