What is the last name of the person who hasn't seen his children???  Answer the above question based on the context below:  In Reno, Nevada, Roslyn Tabor is a 30-year-old woman who has just filed for a quickie six-week divorce from her inattentive husband Raymond. After leaving the Washoe County Courthouse, Roslyn ignores Raymond's attempts to talk to her, and meets with her best local friend and landlord, Isabelle Steers, who is also a divorcee. Isabelle takes Roslyn to a bar at Harrah's Reno for drinks to let the reality of her divorce sink in. While there, they meet an aging cowboy named Gaylord 'Gay' Langland and his tow truck driver friend Guido. They invite Roslyn and Isabelle to Guido's old house in the Nevada country to help her forget about the divorce, after Gay tells Roslyn that he is also divorced. They arrive at the unfinished house Guido built for his late wife, who died several years earlier during childbirth. They drink and dance. Roslyn has too much to drink, so Gay drives her home to Reno. Eventually, Roslyn and Gay move into Guido's half-finished house and start to work on it. One day after breakfast, Gay tells Roslyn how he wishes he were more of a father to his own children, whom he has not seen for some years. Later that afternoon, Roslyn and Gay argue when Gay states his intention to find and kill the rabbits which have been eating the vegetable garden they planted outside Guido's house.
The answer to this question is:
Langland