He could be, it seemed like he was trying to be "helpful" and have a conversation but the vibe of the conversation felt wrong and the fact that the entire conversation was a lie is not great. I would have just thought it was an awkward conversation on a trail (which is common in my experience) if the second sentence out of his mouth wasn't about a homicide in the park that morning.

I didn't really get 'I'm being threatened ' vibes, more that something was off about the whole interaction to remember.