Images are taken from his Charley Project profile:

Barry Pruett is suffering from bipolar disorder and schizophrenia. He left Redding for El Paso, TX on 1/5/2008 when his family last heard from him. He was in touch with a mental health organization in El Paso in 2009 and 2010.

There's basically nothing out there, no newspaper articles, no FB missing page, no NamUs profile etc.