A search in a rugged area of Henderson, Nevada took place on Saturday. As the group of nearly 70 volunteers was concluding their search, they came upon several large bones.
Steven's Father, Rolf Koecher, told ABC 4 that crime scene investigators were called in, but they couldn't determine whether or not they were human remains.
The bones were taken to Clark County Coroner's Office for further tests.
ABC 4 News will continue to follow this story and bring you any updates.