Indeed. If, as he claims, he saw DM get out of the truck and put his gun into his purse, then he couldn't have seen TB with his head on the dash. In spite of Princess' photographic proof it's possible to sit like that, bless her heart, there are so many problems with MS' story that I can't believe any of it.
A RAM is a big truck. From MS' standpoint, and in the dark, how could MS see that the passenger was slumped over? He could not see that. He wouldn't be able to see anything in the passenger seat unless he walked around the two trucks that were parked closely together and opened the passenger door.
Then, it's a leap of gigantic proportion to assume that the passenger was shot. Why not assume that he was tying his shoes, or resting his aching back, or whatever a normal person might think. Shot?! Why would he think that? He couldn't see a wound since that wouldn't be visible from where MS stood. He wouldn't see blood spatter since it was dark.
And, not to belabour the point that the dash is too far forward in the truck to rest one's head against, even if that is remotely possible, TB would have had to set the seat in the farthest forward position, which is unlikely, and then stretched forward in order to precariously balance on the edge of the dash. I don't accept MS' story.
BBM That would be an interesting test. Next time I see a RAM I hope to see what can be seen without opening the door. I would assume he had seen the gun in DM's hand and when he saw the window smashed he put 2&2 together. There was significant spatter found on the dash.
"He testified that there was almost certainly an attempt to clean up heavy, smudged bloodstains found on the dash near a power outlet.
'It was probably the only area where I could [concretely] see there was cleanup, and it appeared there was an area of more blood,' Jones said." http://www.cbc.ca/news/canada/hamilton/news/tim-bosma-trial-bloodletting-event-happened-inside-truck-expert-says-1.3479265
"Bloodstains found on the glove box. The front cup holder. The dashboard. On the rear passenger arm rest." https://www.thestar.com/news/crime/2016/03/01/blood-in-truck-most-likely-tim-bosmas-expert-tells-murder-trial.html