(5-4-12) Exposure to chemical dispersants BP used in the Gulf of Mexico oil spill left a commercial diver with seizures, unable to walk and going blind - and two members of his dive team committed suicide, the man claims in Harris County Court.

David Hogan and his wife sued BP and NALCO Co. - which made the Corexit oil dispersants - and a host of other defendants, including Halliburton, Transocean, ConocoPhillips, Xplore Oil & Gas and Stuyvesant Dredging Co.

After BP's Deepwater Horizon oil rig exploded on April 20, 2010, unleashing the worst oil spill in U.S. history, BP hired contractors to spray and inject more than 1.8 million gallons of Corexit into the Gulf of Mexico, according to the complaint.

"Between June 1, 2010 and the end of November, 2010, David Hogan performed commercial diving work from boats and vessels that were owned, leased, chartered, contracted for, and/or under the direction and control of Specialty Offshore, ConocoPhillips, Xplore Oil, and the Stuyvesant defendants in the navigable water of the Gulf of Mexico.