(Aloha, OR)  --  A man who was convicted of killing his daughter's ex-boyfriend will serve a life sentence with the possibility of parole.  Fifty-four-year-old Jeffrey Johnson gunned down 22-year-old Ryan Johnson in front of a store in Aloha in January 2012.  Ryan Johnson was the father of Jeffrey Johnson's grandson, and there was a dispute over custody of the child.  Jeffrey Johnson will be eligible for parole in 25 years.