Parents of a teenager killed while driving last year are following up on their promise to change Arizona’s laws.
Steve and Tana Smith convinced lawmakers to introduce a bill making drug and alcohol testing mandatory for drivers involved in serious crashes.
The bill is in their son Joe Smith's name.
The 18-year-old and another motorist were both killed when a semi-truck slammed into traffic on Interstate 10.
Records showed the semi-truck driver admitted he was tired, but no drug or alcohol test was ever given.