Yeah, we do need to know more, but offhand it sounds like a bad warrant. That means the man was defending his home. And yes, we’ve had a bunch of of evening home invasions around here in Colorado lately... and none of them were at 2 am. I think most occurred in the early evening, to as late as 11 or 12....
However, this guy is described as "single" and there seems to have not been anyone else in the house.
They do this to keep drugs from being flushed don’t they? Why not turn off the plumbing and electricity and knock on the door?