The death of a 7-year-old boy in Pine View Estates on April 20 might have been caused by illness, according to a public disclosure form released by the Nevada Division of Child and Family Services."Investigation pending; although, preliminary findings appear that the death was due to illness," read the form, which was filed on the same day the incident occurred.The boy has been identified as Wyatt Blackburn, who was a first-grader at Minden Elementary School.Wyatt's mother reported her son was unconscious and not breathing at about 7 a.m. April 20. Deputies and medics arrived at the home on Conner Avenue …