Answer:
it expresses how some things are ugly in life, and bad, and bad things can happen.
Explanation:
for example, line 3, 4, and 5, "It's had tacks in it, and splinters, and boards torn up," Describing things that are bad.
The look in his eyes shows his drive to kill and he’s ready as well as killing the old woman shows he’s ruthless and cold blooded. The dressing of his arm shows he is prepared and used to these type of situations.
Narrative point of view or narrative perspective describes the position of the narrator, it works almost like a camera on the narrator's shoulder showing what he/she sees.
Reasonable guess (4th option)