You could always just make Cop A appear dead and have the whole revenge thing but then he turns up alive at the end (and maybe admits to his crimes).
Just my advice... go right into the action. Paragraphs describing how the main character looks feel overly expositional to me, particularly as a...
What does that even mean? Limited interaction how? Does the character not have the ability to speak to people in the present? Do they have some...
Separate names with a comma.