Mortvedt told KCCI-TV, "It appears to be that of an adolescent and at this time, the clothing that we see on scene, even though it’s obviously soiled and stuff, is consistent with what we knew Xavior to last be wearing."
According to the Iowa Division of Criminal Investigation, the field where the remains were found had not previously been searched.
The Associated Press reports Harrelson lived in a trailer park in Montezuma with his mother. He disappeared days before his 11th birthday. He was last seen at approximately 11 a.m. on May 27, and a neighbor reported him missing after speaking with Harrelson’s mother.
The Division of Criminal Investigation said in their statement the Iowa Office of the State Medical Examiner and the DCI Crime Scene Investigation teams are documenting the scene. Mortvedt said identifying the remains could take "weeks" and it appears the remains had been in the field for a "significant amount of time."