NPR actually reported taht Serino testified that he believed Z and mentioned his apparently sincere relief when told the whole thing was captured on video.
He said either Z is telling the truth or he is a pathalogical liar. So, barring expert testimony that Z is a pathalogical liar, this is good, especially considering NPR reported it.
One of those nightly panels is on a show called “HLN After Dark.” Last night they actually put together some kind of jury - I think it was 9 or 10 women and 2 or 3 men. The question that they were asked to answer was “Does Zimmerman’s story make sense?” Referring mostly to all the video and audio evidence presented on Monday. The results were really scary for Zimmerman: 11 votes “No” and 1 vote “Yes.” All the women voted “No.”