Pre-trial hearings have started in a complex lawsuit to determine blame for one of the largest wrecks in the area's recent history. 

Two people were killed and 100 injured as heavy fog fell on I-10 near the Jefferson-Chambers county line, leading to a 140 car pileup on Thanksgiving Day 2012. 

Callers watched as car after car entered the fog only to crash into already-wrecked vehicles.  Troopers say at one point the visibility was down as low as one-eighth of a mile. For a time, even they couldn't see all the different crashes that had happened.

Pearland couple Debra and Vincent Leggio were killed.  Lawyers representing their family were in court Monday for the start of proceedings. 

Southeast Texas Journal reports the family is claiming damages from the driver of the tractor trailer that hit the Leggio's car and from the company that owns it. 

Members of the Leggio family are reportedly represented by Walter Umphrey of Provost and Umphrey Law Firm in Beaumont as well as Joseph D. Jamail of Jamail and Kolius in Houston.

Joseph D. Jamail famously represented Pennzoil against Texaco and on winning claimed a fee of $335 million.