The star, real name Christopher Lee Rios, passed away of a heart attack in 2000 and Liza Rios wants to raise awareness about the difficulties he faced with his weight and trauma he went through in his childhood.

The Christopher Lee Rios Foundation will launch in and around Rios' hometown of the Bronx, New York.

"You just can't give up," Liza tells "You just keep going. You adjust to the situation, and you keep going. Even going through the transition of losing him. I've been through so much, but I'm still here."

"I always wanted to give back in a certain way," she continues. "Pun loved the Bronx, and no matter how much fame, he wanted to stay here."

Rios explains Big Pun's health problems stemmed from his childhood abandonment issues and the poverty he faced while trying to break into the music industry.

"Pun didn't know how to express himself in a positive way," she adds. "Bottling up all that anger, feeling like he couldn't talk to nobody (sic). It's not a good way... His real problem was emotional eating. It was an emotional thing that led him to eating, and that led to his demise."

In addition to the foundation, Rios has also signed a deal with Hologram USA to bring Pun back to the stage in performances across the country. She is also writing a book about her life with the late rapper and will be hosting a new radio show, titled The Punisher Show.

"He's relevant," Rios continues. "He's still very much present. He's got the people from our era listening to him and the new generation. Pun was timeless, and his legacy will love forever. I just want to thank them (the fans) for the love and support."