Cameron Todd Willingham was executed in Huntsville...

Cameron Todd Willingham was executed in Huntsville Tuesday night for the Dec. 23, 1991 arson murders of his 3 daughters. Willingham, 36, was pronounced dead at 6:20 p.m. The 3 girls -- 2-year-old Amber Kuykendall and 1-year-old twins Kameron and Karmen Willingham -- were killed in the fire that their father was convicted of intentionally starting on. Willingham was the 7th convicted killer executed in Texas this year.