Volunteers searched Saturday in St. George for 17-year-old Macin Smith, but they again failed to find his remains.

A Twitter account run by family and supporters said “no signs” of him were found.

Smith was a student at Desert Hills High School. On Sept. 1, 2015, he didn’t come home. His family later found his wallet with a note inside. His mother has declined to specify what it said except to say he intended to hurt himself. Smith’s family has concluded he killed himself.

The family organized a search in the desert sagebrush and valleys near their home on the east edge of St. George. It was to begin 8 a.m. Saturday. The family especially had requested help from people with horses or ATVs.