Let me say this first , I think Cobbins should have gotten the DP, as well as I think LD should.
Cobbins, however, did attempt to display emotion. IIRC, he did get up and try to sound remorseful for what had happened. He did hide his face at times. He did attempt to look 'weepy', even if for himself.
This guy, LD, has shown no emotion whatsoever. He is just blank. Makes him appear soulless. The little glasses and nice clothes give him an outward appearance of normalcy, but cannot make up for his lack of 'human-ness'. He is one of the scariest people I have ever seen. Hopefully, the jury can see that also.