Attorney Vance Owen, right, speaks with Cynthia Rivera, sister of victim Arturo Rivera, as they announce a lawsuit on behalf of four associates of Mexican singer Jenni Rivera, who perished along with ... more 

Attorney Vance Owen, right, speaks with Cynthia Rivera, sister of victim Arturo Rivera, as they announce a lawsuit on behalf of four associates of Mexican singer Jenni Rivera, who perished along with her in a plane crash in Mexico in December, at a news conference in Los Angeles Thursday, Jan. 10, 2013. Cynthia Rivera and Arturo Rivera are not related to Jenni Rivera. (AP Photo/Reed Saxon) less