Former NASCAR driver Greg Biffle becomes latest athlete to be killed by aviation tragedy

Former NASCAR driver Greg Biffle, his wife Cristina and his two children died after a small private jet crashed shortly after takeoff in North Carolina on Thursday, in a disaster which killed a total of seven people.

​ Former NASCAR driver Greg Biffle, his wife Cristina and his two children died after a small private jet crashed shortly after takeoff in North Carolina on Thursday, in a disaster which killed a total of seven people. Read More Breaking News, Latest News and Videos | CNN