Wes is Paige Lassiter's abusive ex-husband, and Christopher's father. In the show, it is stated that he filed a restraining order against Paige, to trick the police into believing that she was abusive, while in reality this was false. In season two, he arrives in Virgin River where he decides to force Paige and Christopher to move. When Paige refuses to comply, he chokes her and attempts to go get their son. Wes falls down the stairs, to his death, soon after.
In season 2, Preach sees him at the bar.
Not much is known about Paige and Wes' relationship other than it seemed happy for a while. When Christopher was born, Wes began abusing Paige, forcing them to run.