I am incredibly skeptical of the hypothesis that this might be a murder. Asking a few key questions makes it clear how dubious it is:<p>Most importantly, who's gun was it? If it was someone else's gun, sure, it's a murder, but I think we'll find that the gun was Barnett's. And if so, we have to ask, how did the murderer manage to kill Barnett with his own gun?<p>How did the killer get into the truck? We can assume the killer had to be in the truck, since the alternative (killing Barnett elsewhere and dragging the body through a Holiday Inn parking lot into the driver's seat) is absurd. Did they get lucky and try the door, finding it to be open? If so, wouldn't there be signs of a struggle when a stranger enters your vehicle? Or did they get in because they know Barnett, and he let them in (in which case, they won't have an alibi)?<p>Why commit a murder in a public location? I won't be surprised if the Holiday Inn parking lot was being surveilled.<p>The fact that the gun was found in his hand, and the timing of the murder, do seem like pretty big coincidences. But I think it's easier to chalk these up to coincidences than it is to answer the above questions. Additionally, per his Wikipedia page, he suffered from PTSD and anxiety attacks. These don't guarantee that he's suicidal, but it's not the picture of perfect mental health either.<p>I'm very interested if anyone thinks they have a good explanation of how this could have taken place as a murder.