Joe Kenda's investigation into the brutal rape and murder of 24 year old wife and mother Mary Lynn Vialpando goes cold until DNA technology leads cold-case detectives to the most unlikely of killers 30 years later.

Cast:Joe Kenda, Dan May, Larry Martin, Skip Arms, Brian Ritz, James Isham,

Genre:Crime, Documentary,

country:United States of America,

Production:Investigation Discovery, Jupiter Entertainment,