O=Kay...........
Just about Everyone on this here Forum by now has heard why the Perp is always found inside the home.
And a clean patch of lineoleum about two feet wide running from the door.
Just remindin'...........
That's All
The only way to do that adequately is to have a 2 oz spray bottle of Luminol (from Amazon for $12) handy and spray that area after washing it. Any missed traces of blood will glow with bluish florescence when all lights are out and windows blocked. Repeat washing till Liminol shows nothing. Good for detecting fingerprints too. However, most people do not realize how far specks and mist can travel, so maybe more than 2 oz would be needed to spray the walls, ceilings, furniture, fixtures, etc.. withing 2530 feet of the scene, or the entire room in which it supposedly took place. Don't miss the air vents, blood spray can travel several feet up the vent and even get trapped on the filter. With chain polymerase even a speck of blood can give a good DNA test.
However, if the person was shot outside and dragged in, Liminol & other agents would show the presence of invisible blood stains outside, as well, but spraying would have to be done at night or in a tent covering the scene in order to see & photograph the blueish glow. Cleaning the porch, the outside porch walls, walkway, rails, and especially the grass, would be very difficult. And the cleaning agent of choice, Chlorine bleach, leaves obvious telltale signs of use, evidence of a cover up which suggests the shooter knew his shoot wasn't "righteous".
Lack of signs of forced entry is another give away. The article reports that entry was forced. Did the reporter get that from the resident or from observations and statements made by law enforcement? If Luminol shows blood specks around the damaged area BUT NOT in the damaged area that is proof that the damage was done after the shooting took place. Uh oh.
Nothing beats good gun control and frank honesty. IF the perp survives and tells a story of a drug deal gone bad ... true or not it is "he said" against "he said". Evidence of previous drug use in the house, which is extremely difficult to eradicate, would seal the deal for prosecutors.
