How police used DNA and ballistics to identify the likely killer of 4 girls in a yogurt shop 34 years ago

Two days after four teenage girls were found murdered in a burning Austin yogurt shop in 1991, a man with a pistol in a stolen car was arrested at a border checkpoint west of El Paso.

​ Two days after four teenage girls were found murdered in a burning Austin yogurt shop in 1991, a man with a pistol in a stolen car was arrested at a border checkpoint west of El Paso. Read More Breaking News, Latest News and Videos | CNN