I'm thinking/wondering if perhaps he holed up wherever for the night, with all of his weapons, expecting to die during a gunfight with RCMP, and perhaps even kill a cop or two before he died himself. But that didn't happen during that night, and there he was the next morning, still a free man. So he decided to continue on with his carnage, figuring he was beyond escape/saving his life at that point anyway, or maybe even wanting to make the cops look even worse (?)
What MistyWaters said above.. I was wondering kind of the same.. did he see these women driving, perhaps while talking on their phones.. (illegal, right?).. and so he shot them as he drove by or whatever (self righteous, controlling), perhaps wondering why (in his head) cops are so incompetent (he hated the cops apparently?) and why they don't deal with infractions or whatever, because he was on his power and control trip, and he 'could'.
Maybe he spent the night thinking about others in close enough location range, whom he figured had wronged him somehow over his lifetime, and decided to start getting those people too.
It seems we now understand there were 'witnesses' who saw him shoot the two VONs and that he did not in fact pull them over?? But yet we aren't hearing the reports from the witnesses (or the police). Just hoping that someday we WILL hear the reports being held from the public. Normally there is a criminal case to build and protect, but apparently not in this case, so other than protecting the victims, why hold information back? I don't think anyone blames or would blame any of the victims for anything whatsoever. People likely wouldn't be so outspoken about the job police did that night/day, if police were just honest about the happenings during that however-many-hour rampage. jmo.