Drunk father 'kills driver in 100mph SUV crash before shooting good samaritan' (all the while with his toddler twins strapped in back seat)

-Thomas Lester Harper, 27, of Arlington, Texas, arrested

-'Crashed into two cars then sped off and into pickup'

-That driver was killed and it caused eight-vehicle wreck

-Harper 'shot man who walked up to side of his SUV'

-Twin toddlers in Harper's SUV 'suffered minor injuries'

http://www.dailymail.co.uk/news/article-2074541/Thomas-Lester-Harper-Father-crashes-SUV-killing-fatally-shoots-man-outside-vehicle.html