How familial DNA testing helped lead to break in cold case

The 1996 murder of Angie Dodge has gone unsolved for more than two decades. But DNA collected from a then-public database owned by Ancestry.com has lead to a break in the case. Anne-Marie Green previews her "48 Hours" reporting on CBSN.

How familial DNA testing helped lead to break in cold case
The 1996 murder of Angie Dodge has gone unsolved for more than two decades. But DNA collected from a then-public database owned by Ancestry.com has lead to a break in the case. Anne-Marie Green previews her "48 Hours" reporting on CBSN.