Mysterious death

My day was well spent but when the night came I experienced what I can refer to as a cold-blooded murder. Ladys and Gentlemen please help me understand why there is so much killing and sometime without taking any valuable from the victim or even  vandalism.It's not so easy, as it turns out. The following is what happened to my neighbor:

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He arrived home at about 1am...and shortly after,these morons arrived and cornered the Watchmen,asked them where Emmanuel was and they were shown the house..

what I gather is that they called him out,which he did,I heard screams which is common here, when I peeped through the window is when I saw the first shot been fired then a second shot and that's when I called for help,

one was dressed in blue,before the shots,I thought he was a cop,then a third shot and a fourth one..and they were not in a hurry,the alarm came on and they stepped out,soon after it went off,they did a fifth one outside, it took some time before I stepped out,went where the shots were fired,saw two cartridges,took pictures,then I noticed blood,but not a lot.

when guys came out is when we were told that someone had been shot,I rushed into the house,found him on the seat, but he was not bleeding profusely,in fact there was a clot,he did speak,but when I lifted him,he groaned,n I knew he was not ok..so we took him to the car,he was conscious,he was rushed to hospital,and after about an hour,I suspect,he died..