They are ones that left or were kicked out of the BC Con Party. One left voluntarily and one left due to being booted for stating facts about Residential Schools... There is another one kicked out of Con job party but is still sitting as Independent and has not joined one BC.
One BC only has two mla's at the moment but I could see getting more as seems a number mla's not happy with Leader Rustad.
This is partly why the feds want to go Communist China on the internet - to stop too many Canadians from learning the truth and even worse - joining up with hundreds of thousands of like minded Canadians to do something about it.