San Francisco 49ers All-Pro linebacker Aldon Smith is now defending himself against a civil suit following a shoot-out during a party at his home last summer.Smith's attorney, Matthew Conant, on Tuesday filed an answer to a Sept. 3 lawsuit accusing the football star and a former teammate of firing illegal weapons, brandishing handguns, hosting a party where two people were shot and allowing gang members to attend the event.RELATED: Smith Arrested on Suspicion of DUISmith's defense claims in the legal filing, plaintiff Ronndale Esporlas -- one of the shooting victims -- knew the dangers and risks he was taking when he attended the party at the star player's 8,000-square-foot home on June 29, 2012.Conant also wrote injuries and damages were caused by persons other than Smith.Esporlas alleges that he suffered "serious, catastrophic and permanent injuries" when he was caught in a "crossfire" of bullets in the early morning hours of June 30, 2012. Delanie Walker, a former Niner who now plays for the Tennessee Titans, was also named in the suit as a co-defendant.DOWNLOAD: Response Filed by Smith's AttorneyAccording to the lawsuit, there was dancing and a lot of drinking, where Smith and...