"It's still hard for me to watch video of Anna, to see pictures of her and to know that she's gone," Stern, Smith's onetime lawyer and devoted companion, said in an exclusive interview with E! News.
After she died, "I realized how important she was to my life—she was my whole life. I gave up my whole world for her."
"For at least a year after Anna's death, I couldn't concentrate," Stern said. "I couldn't even focus on something for more than a couple of minutes at a time without breaking down or somehow just not being there—like I wasn't present.
"For a long time I just wanted to die, literally."