1. What was the motivation for the slaying?
I have my suspicions that it comes down to more but, the truck was the end game, getting it... without knowing the purpose of the truck in the mass of puzzle pieces, we can't answer the glaring question. The truck could have been the trophy in an type of "initiation" for the 2nd suspect, which is common for both test drive events.
2. How did he die? Was he murdered before his body was burned?
I have my suspicions that he was strangled from suspect #2 behind the victim, which opens another can of worms for DM being an accomplice to the murder... being strangled and leaning him up against the passenger window, no one would even notice, he would appear to be sleeping. We know for sure he was murdered before his body was burned based on the accounts given by LE. MK, the lead LE on the case, told us he was dead before his body was burn, he was not burned alive and the reason they would know this without an autopsy, the body was cut up and it had to be in order to put it in the "Eliminator" to cremate the remains. No one could survive what was done to the body, in order to attempt to cremate it.
3. Who are the other people involved and how were they connected to the accused, Dellen Millard?
I suspect these are people deep in his inner circle... he probably showered them with gifts, trips etc.. gaining their trust in order to "get info" on them, such as one individual in his company who is bi-sexual but, has not "come out" to anyone at this time. Only using this as an example and can prove this statement.
4. Police say Bosma was targeted. Was this personal or was he targeted for his truck only?
Totally targeted for the truck, and his physical size and structure fit the requirement for them to be able to subdue him. Had he been a larger individual, such as was the case with the first test drive individual, they may have had to abort this attempt as well. I say this in considering that from LE, we know that TB was in the front passenger side of the truck, DM who was much taller than Suspect #2 was in the driver's seat during the test drive and suspect #2 is much smaller than both men according to the description.. that individual was going to have to subdue TB. Sitting behind TB's seat, tossing a rope past his face and around his neck, is the most probably method, TB struggled according to LE, and he would have struggled with a rope around his neck for upwards of 7 minutes. So within 10 min of leaving the property, DM & suspect #2 could have TB cell phone, the truck and a deceased TB. Allowing enough time for all the other details we know. (Added... it would not be "odd" for Suspect #2 to be leaning forward and into the front seat talking to both men, also making it easy access to use a rope around the neck of TB from that point.)
5. What were the circumstances around a similar test drive in Etobicoke the day before Bosma disappeared and how are the two cases connected?
In this situation, a call was placed to the owner of the vehicle based on a kijiji offer of a Ram Truck, similar to TB's truck only a newer model. Arrangements were made over the phone to view/test drive the truck. Two suspects walked up on foot, raising suspicion of the owner of the truck due to the location of his business being in a totally industrial area and I believe (MOO) that based on the time between the call and the individuals showing up on foot, it raised an alarm with him. This truck owner is a very large man, said by LE that he could have probably subdued both suspects without issue.
6. If the suspects did not find Bosma through Kijiji, did they find him through another online site where he posted the ad? Kijiji says the ad posted by Bosma did not contain any personal information nor did his ad get any replies.
The suspects DID find Bosma on Kijiji based on LE comments in MSM direct releases, the ad did NOT contain person information but, TB DID include his cell phone number to be contacted at, on the ad. This is how the suspects contacted him, were given instructions where to come to view the truck. You do NOT have to contact a person via Kijiji if they place a phone number on their ad, you can just take the phone number and call the person. Perspective buyers are NOT tracked in this manner. The only way there is any ISP type of tracking is if only an e-mail address is offered as a form of contact for the seller, then the perspective buyer must e-mail them to gain a phone number or address to view the item.
Sources... (all LE Media Briefing Video)
https://www.youtube.com/user/JoeyColemanCA