Donald Lite is going after Brandy and Awatef Aboudihaj -- the married mother of two killed in the accident -- claiming their disregard for road rules caused the multi-car pileup that left him with extreme physical damage.

In the suit, filed last week in L.A. County Superior Court, Lite says their failure to keep a safe distance, mixed with their inability to travel at a safe speed, caused Brandy to rear-end Awatef, which sent Awatef's car smashing into his.

Lite says he's suffered "serious and permanent injuries" that racked up a lot of hospital bills -- and is suing for an undetermined amount. - more on this story

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