>>1783426You are asking too broad of a question.
Have people been shot for breaking and entering? Yes, frequently.
Have people been shot for just walking on someone's property? Not often but there are cases.
Stand Your Ground laws, implemented on a State by State basis, essentially stand as the ultimate bulwark for property rights: You have no duty to retreat from a place that you are legally entitled to be. Reasonably perceived immediate threats of serious bodily harm may be met with any level of force.
An argument can be made that if someone reasonably perceived an immediate threat of serious bodily harm they could, in fact, shoot that person who was trespassing on their property, provided the newly shot person was the threat.
The Castle Doctrine, often expanded and cited as the basis for Stand Your Ground laws, is a commonly known legal doctrine that holds true to the general principle that one’s abode is his “castle” and that he does not have any duty to retreat in said home. It should be noted that the Castle doctrine is not an actual law, but a collection of principles that can be invoked in many jurisdictions as a form of defense to a murder charge. It is also somewhat specific to one’s abode rather than just the general idea of one’s property.
The Castle Doctrine still requires an immediate threat of physical harm to either yourself or another however, and so it still requires the reasonable perception of injury.
Would someone walking/standing on your lawn cause a reasonably perceived threat of serious bodily harm? Probably not.
Threatening behavior or burglary could certainly rise to a level where deadly force would be legally acceptable in the U.S.
Also, I believe that trespassing with a firearm is a felony in most states.
So if Joe Schmoe hobo is peacefully camping on your property, you cannot legally kill them.
If antifa comes to firebomb your house, yes, you can defend yourself with lethal force.
