In the most recent episode, I noticed that when Ben comes to release Sayid, they talk briefly about how Roger had beat up Ben. Then Ben says, and yes, I went back to check, "I really hated him". This leads me to believe that Ben somehow got his frequently drunk dad into the van and set it on fire.
What makes me think that? Well,having learned from TV cop shows, that one thing the detectives note in a murder suspect is that innocent people refer to the deceased in terms of them being alive, while the murderer doesn't. So, Ben is acting like a murderer.
How did Ben get Roger into the van, he had help. Perhaps Richard? Why would he help? Ben tells him that the Dharma guys have one of his people and Richard knows it isn't one of his, that it likely isn't a Dharma guy, so could it be another time traveller?
Implication? Roger is dead before his time and the timeline is changed. Theory by WNGYPSY
What makes me think that? Well,having learned from TV cop shows, that one thing the detectives note in a murder suspect is that innocent people refer to the deceased in terms of them being alive, while the murderer doesn't. So, Ben is acting like a murderer.
How did Ben get Roger into the van, he had help. Perhaps Richard? Why would he help? Ben tells him that the Dharma guys have one of his people and Richard knows it isn't one of his, that it likely isn't a Dharma guy, so could it be another time traveller?
Implication? Roger is dead before his time and the timeline is changed. Theory by WNGYPSY