It's a very very borderline case. I thought evidence of the 10mm "HOLLOWPOINT!!!" took advantage of the juries ignorance. 10mm is a great anti-bear round, and as someone else pointed out, was utilized by the FBI at before.
I didn't read any evidence between the physical fitness between two parties. One person was a fire-inspector (big bulky, burly, young and in shape?) and the other was a retired school teacher (57, perhaps frail?). That may have established a more reasonable use of deadly force...
It's too bad the case turned out the way it did. Hopefully he'll get his sentence abrogated in to probation.