I have no idea. I have no idea how someone can say he looks different and the reporter without thinking say "different how?" It just rolls out.
Did the neighbour see the long haired photo? (Once again WHY was that photo not sourced in the story?) If they saw the long-haired one and they are saying he looks different - then he may have just had his haircut since that was taken(shorter in arresting footage). The background in the long haired photo reminds me of a drivers license photo. Maybe an Alaskan can confirm that. Passport photos require a white background.
The neighbor said on the news she thought it looked like he dyed his hair since the last time she had seen him.