Crockett confronts the man who murdered his wife (played by singer Sheena Easton) and unborn child. The crucifix Crockett shows him was given to him by Hackman in an earlier episode when Sonny misguidedly got the guy exonerated for another murder.
3min 37 sec vid.
https://youtu.be/yTSJ0s1A20s
****Spolier alert below****