Lieutenant Joe Kenda turns to a trusted K-9 officer for help when a marathon runner is found murdered hours before a big race.

Armed with little more than a vague witness description, Joe Kenda leads a state-wide search for the ruthless murderers of two elderly shop owners.

The 1988 case of a missing nine-year-old girl went cold until an encounter at a bus stop breathed new life into the investigation and revealed the truth.

Philadelphia investigators bring to light the obsession that drove a killer to strangle maths student Deborah Wilson to death in a computer laboratory.

Lieutenant Joe Kenda turns to a trusted K-9 officer for help when a marathon runner is found murdered hours before a big race.

Armed with little more than a vague witness description, Joe Kenda leads a state-wide search for the ruthless murderers of two elderly shop owners.

The 1988 case of a missing nine-year-old girl went cold until an encounter at a bus stop breathed new life into the investigation and revealed the truth.

Philadelphia investigators bring to light the obsession that drove a killer to strangle maths student Deborah Wilson to death in a computer laboratory.

Lieutenant Joe Kenda turns to a trusted K-9 officer for help when a marathon runner is found murdered hours before a big race.

Armed with little more than a vague witness description, Joe Kenda leads a state-wide search for the ruthless murderers of two elderly shop owners.

The 1988 case of a missing nine-year-old girl went cold until an encounter at a bus stop breathed new life into the investigation and revealed the truth.

Philadelphia investigators bring to light the obsession that drove a killer to strangle maths student Deborah Wilson to death in a computer laboratory.

Lieutenant Joe Kenda turns to a trusted K-9 officer for help when a marathon runner is found murdered hours before a big race.

Armed with little more than a vague witness description, Joe Kenda leads a state-wide search for the ruthless murderers of two elderly shop owners.

The 1988 case of a missing nine-year-old girl went cold until an encounter at a bus stop breathed new life into the investigation and revealed the truth.

Philadelphia investigators bring to light the obsession that drove a killer to strangle maths student Deborah Wilson to death in a computer laboratory.

Lieutenant Joe Kenda turns to a trusted K-9 officer for help when a marathon runner is found murdered hours before a big race.

Armed with little more than a vague witness description, Joe Kenda leads a state-wide search for the ruthless murderers of two elderly shop owners.

The 1988 case of a missing nine-year-old girl went cold until an encounter at a bus stop breathed new life into the investigation and revealed the truth.

Philadelphia investigators bring to light the obsession that drove a killer to strangle maths student Deborah Wilson to death in a computer laboratory.

Lieutenant Joe Kenda turns to a trusted K-9 officer for help when a marathon runner is found murdered hours before a big race.

Armed with little more than a vague witness description, Joe Kenda leads a state-wide search for the ruthless murderers of two elderly shop owners.

The 1988 case of a missing nine-year-old girl went cold until an encounter at a bus stop breathed new life into the investigation and revealed the truth.

Philadelphia investigators bring to light the obsession that drove a killer to strangle maths student Deborah Wilson to death in a computer laboratory.

Lieutenant Joe Kenda turns to a trusted K-9 officer for help when a marathon runner is found murdered hours before a big race.

Armed with little more than a vague witness description, Joe Kenda leads a state-wide search for the ruthless murderers of two elderly shop owners.

The 1988 case of a missing nine-year-old girl went cold until an encounter at a bus stop breathed new life into the investigation and revealed the truth.

Philadelphia investigators bring to light the obsession that drove a killer to strangle maths student Deborah Wilson to death in a computer laboratory.