I’m also wondering the same thing because it wouldn’t be realistic but not totally impossible for Andy to have crawled away from the train tracks at the last moment BUT he also fell from the top of a bridge and likely wouldn’t have gotten far enough to evade police and be free only a year later especially at the active crime scene with at least 6 officers there. So it would be more likely for his reappearance to be an hallucination based on the fact that there’s no other environmental indicators of a break, and or disturbance in the place that Brian was living other than the meal that was laid out that could very well not be real. And it seems that he has been abusing the pills pretty heavily and could be having a PTSD hallucination
Just a genuine question, how did he come back to life? Or was it Brian's imagination/hallucination at the end?