At nunc mones me ut vestris parentibus parcam! Non oportebat quidem vos scire quid de his statuissem, quo tristiores periretis, si qua vobis parentum memoria et cura est; sed olim istum morem occidendi cum scelestis insontes propinquos parentesque solvi, et profiteor in eodem honore futures omnes eos in  quo fuerunt.
But now you are asking me to spare your family members! You should not have been aware of my plan regarding them, so that you would die with even more grief, if you have any concern for your relatives. However, I completely abandoned the practice you mentioned, of killing innocent family members and relatives with the guilty ones. I ensure you that they will retain their previous status.