9 years since 4-year-old Kennewick girl disappeared
Police believe she was abducted. There was an Amber alert. Officers searched homes, questioned more than a 1,000 people and chased tips from around the country and Mexico.
The Tri-City Herald reported that Sofia was featured on "America's Most Wanted," and her face appeared on a NASCAR race car and on semi-trucks across the nation's highways.
Sgt. Ken Lattin said investigators are frustrated they have no solid leads, but they're not giving up hope of finding her.
Lattin said Sofia is a young teenager now and might start asking questions about her past or where she lived when she was younger.
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