I've thought about this case a lot and I keep coming back to Occam's Razor, which is the principle that when there are competing theories or explanations for something, you should prefer the simpler one because it's most likely to be the correct version. It seems to me that with the finding of MC's body, we are down to two theories: Homicide or Suicide.
Following Occam's Razor, plus common sense, it seems to me that it has to be homicide. Think of all the complications in the suicide "theory." For example,
1. How did he get to Point, TX? The location of his body was roughly 20 miles from his house. If he rode his bike (at an average speed of 4.5mph, mind you), how come no one saw him? Unless he had Harry Potter's Invisibility Cloak, I don't buy that MC rode his bike anywhere that day.
2. Why did he ride his bike to Point, TX when he was just there a few hours earlier at Wal-Mart? Why not just drive his truck to the location rather than riding his bike for 20 miles on a windy day?
3. If you are going to die by suicide, what's the point of staging a fake crime scene? And what do the blood drops get you? And if you are going to be dropping blood drops, would you do it to make it appear that each drop of blood was from the same height (they all look the same)? Wouldn't you create streaks or something or a pool of blood at least?
4. If you are going to die by suicide, what's the point of putting blood on a dowel? What does that get you? With points #3 and #4, why do you need to stage a crime scene? And why stage a crime scene in the very place that is like a temple to him (his garage, where he restores old cars)?
5. If you have decided to die by suicide, why even go to Wal-Mart to do one last nice, kind, selfless thing that morning? I don't think so.
6. Had MC ever expressed to anyone that he was struggling with depression? Did he ever talk to a pastor? A friend? A family member? A neighbor?
7. I know the previous sheriff had said that they had reason to believe it was a death by suicide but what information do they have and WHO provided them that information? Until the public is made aware of that information, I am not buying this argument. "Trust me" does not work in this case, when the previous sheriff has done nothing to build any public trust in this case.
8. Imagine you are MC and you have concocted a brilliant plan to stage a crime scene to make it look like you have been abducted and, perhaps, murdered. You have a vial of your blood and you have dropped it on your garage floor and the drops even go toward the door. You've even thought so far as to put blood on your hands and grab a dowel to really throw off (or convince?) investigators. But you are about to make the biggest mistake of all . . .you are going to go for a leisurely bike ride (remember, an average of 4.5mph) of about 20 miles. If you do the math, that's about a 4-5 hour bike ride! The bike ride is a huge mistake for two reasons. First, it's in your own back yard so anyone in your social circle could see you. A neighbor, someone from church, a waitress or hostess from a restaurant you went to, a friend . . .the list goes on and on. Second, you go on this bike ride WITH YOUR PHONE ON. If you want the investigators to think you have been abducted, would you keep your phone on? Apparently, you are thinking about the phone because you then throw your phone off the 2-mile bridge (investigators believe somewhere in the middle of the bridge) at around 5:55pm, I think.
9. Not only is suicide a horrible "theory," the fact that the sheriff shoved this down the throat of the family on a national TV program just takes the cake.
10. Investigators know this but the phone is NOT the body. The phone could be in one place while the body could be somewhere else. This basic fact seems to be lost on many people, including the original sheriff. He seemed to assume that the phone was on MC's person, which is not a given, especially if it's a murder.