Demons in Haiti

An unsaved friend of mine recently took a humanitarian trip to Haiti for a little over a week. He came back, and briefly being able to talk to him, he was visibly shaken. While there, he says he "literally" saw demons there, and even described to me some of what he says he saw with his own eyes.

I'm hoping to use this as an opportunity to witness to him. So be in prayer. But reflecting upon it some, I was wondering what you guys might make of his own "eyewitness" testimony of visibly seeing demons while in Haiti.

Thoughts? As much as possible, use Scripture :-)

Well, they are angels after all - albeit fallen angels - and there are several instances of angels revealing themselves in scripture.