Jest Chillin
Member
Could have used Thea, Moira, and Tommy in the first half of the season for that. And it's not like Oliver wasn't a seething ball of insane serial killer rage throughout the whole first season because of Laurel anyway. Tommy's death was really the big thing that developed him in that way.
Oliver was teetering on the edge in the first season. He didn't have a problem with killing, sure, but he also wasn't batshit insane either. It was primarily the combination of Diggs and Laurel that kept him from going over the edge. Moira and Thea would not have worked simply because Moira being responsible in part for the whole thing would've regressed his character and Thea would've had to be in the know more about what was going on.. which just doesn't make sense for a 17 year old kid. Tommy's death was the catalyst for Oliver going non-lethal but he wasn't instrumental at all in his overall character development. Mostly because by having Tommy go back and forth between "I got your back!" and "I hate you you killer!" it never really pushed Oliver in any direction for very long.