First off love the dead guys tat's. Can you say irony. Every once in a while a guy like this pops up, some tough peckerwood hard as woodpecker lips that's just not going to lay down till you put him in the ground. It's bullet sponges like this guy that lay bare how badly the three major cartridges (9mm, 40, 45) fail to stop fights. I know this report concerns the 40 but you can scrounge up near identical incidents involving the 9 & 45. Why, simple all of these calibers lie between 360ftlbs & 500ftlbs of energy and 800fps to 1150fps velocity. That is not a lot in the grand scheme of things. I am an advocate of carrying a round with no less than 1400fps with at least 550-600 foot pounds of energy. I would encourage anyone who disagree's with this to first listen to ProArms Podcast #31 where Massad Ayoob interviews Kieth Jones. A law officer involved in several shoot outs as an officer and is now a trainier. He lays out my argument far better in that interview than I ever could posting on this forum. He goes into detail about how his dept went from an average 4.8 shots per shooting with 147grn 38spcl round (183ftlbs 750fps) to 1.5 shots per shooting with the 125grn 357mag (583ftlbs 1450). The crazy thing is his dept saw a dramatic decrease in deaths they were ending fights quicker and killing less people. To summarize from the podcast people lost the will to fight even after being hit in nonlethal areas often times raising their hands to cover their head and turning away after being shot. He also comments on how the number of shots fired per incident rose after his dept converted to semi auto pistols in the wonder nine years.
I know their are some that say it is better to hit with something small & weak than to miss with something powerful. To those I would say this is a cop out dedicate yourself to training harder. No one ever said damn I brought to much gun to a gunfight. I would encourage anyone who is serious about training, strategy, and mindset to read Miyamoto Mushashi The Book of Five Rings just as in his days there are many different schools of thought today. Here we saw a person who returned fire after being hit multiple times and shoot to the ground and kept fighting. All the conventional wisdom failed the guy was shoot through the heart just like the main shooter in the Miami shoot out and wasn't put out of the fight. Some have mentioned the Mozambique drill ,really at 20 feet in the dark while being shot at? I believe that would take an incredible amount training and skill and if you have the dedication to do that you have the dedication to carry more power.
PS I'm not advocating the 357 mag even though it was used as an example here I feel there are better more powerful cartridges with less perceived recoil.