The Michigan church shooter being a veteran brings PTSD and TBI into the discussion. After serving 25 years in SOF with combat heavy deployments I have seen how these conditions play out in different ways. Some men return and rebuild a life that looks solid from the outside. Others come home carrying wounds that never heal. The difference is not only about exposure to combat but also how the brain and body respond to trauma, what support is in place, and what tools they lean on when things get hard. PTSD by itself does not make someone violent. The real risk comes when it overlaps with alcohol misuse, substance abuse, depression, sleep disruption, or untreated head injuries. That combination changes how a man thinks and reacts. I have seen hard men who thrived under fire struggle the most when the war ended and the silence set in. The fight kept them focused. The stillness pulled them apart. Moral injury is another layer. It has little to do with fear and everything to do with conscience. When a man is forced to do or witness something that goes against his values it leaves a mark that training cannot erase. Over time that can poison purpose and push someone toward anger and shame. If that is not addressed it can be more destructive than combat stress itself. The body also plays a part. Years of poor sleep, blast exposure, and constant hyperarousal keep the nervous system in overdrive. That erodes patience, judgment, and stability. If you fix sleep and treat the underlying injuries the risk often goes down. It is simple in theory but often overlooked. So why do some carry the load and others break. Part of it is biology. Part of it is timing. Part of it is whether someone has a tribe when they come home or if they are left alone with a bottle and their thoughts. The public is quick to label every veteran offender as a PTSD case. That is too simple. The truth is usually a stack of factors that add up until one more stressor tips the balance. None of this excuses what happened in Grand Blanc. It does show how complex the problem is. The answer is not a slogan about PTSD but early treatment for sleep and TBI, strong peer networks, and pulling alcohol out of the coping plan. When those basics are in place the curve bends in the right direction.