The article in "People" went to great lengths to demonstrate just how difficult it was for this young man and his little daughter. How hard he had to work, how early he had to get up, how little free time he had, etc., so I don't think most teens would, necessarily, be encouraged to have children based on his example.
By all accounts he seemed an exemplary young man. I am so sorry some criminal took his life.
Thanks for summarizing what the article was about. From it, I didn't get the impression that the father was 'bragging' about his sins.