(Portland, OR)  --  Police say a Portland man is accused of committing dozens of sex crimes against children, dating back nearly nine years.  Investigators say 23-year-old Jared Kelly White was 15 when he repeatedly abused an eight-year-old boy beginning in late 2007.  Police say White is facing a total of 54 counts after being accused of sexually abusing three children.  Authorities say White had several jobs where he had contact with kids.