The Grant County coroner confirmed Monday that remains found near the Mississinewa River on Feb. 9 are those of a missing 74-year-old Noblesville grandmother. The remains of Dorothy Heard had to undergo DNA analysis to make a positive identification. Heard was last seen alive on June 13, 2011. Her 47-year-old nephew, Donald Burns, is considered a person of interest in her death. Burns, a convicted child molester, is being held at the Pendleton Correctional Facility on unrelated charges.