Let me jump in for a bit, since I clearly lived through the founding of that non-existant "Constitutional right". Yes, a murderer CAN say "I'm truly, truly sorry", however, that won't (or shouldn't) exempt him from punishment.
A woman may be forgiven by God providing her repentance is truly of/from the heart (only God knows that for sure) but there still will be consequences, not by an eartly court perhaps but by conscience. I don't believe that can be argued, really. It could be that that punishment (conscience) is far more severe.
That still doesn't equate it with murder. There are some who would like to see the woman prosecuted for murder, and if it IS murder, that position is at least consistent (if unachievable).