Aug 10, 2006 2:02 AM EST

Joyce Van Exel, the mother of former Spurs guard Nick Van Exel who shared the fearless attitude her son used to become an NBA All-Star, died Tuesday in Houston. She was 52.

Joyce was found dead of an apparent heart attack in the house Van Exel bought for her near his home in Houston. An autopsy is planned, said Van Exel's agent, Tony Dutt.

"It's a really emotional time for him," Dutt said. "But we're going to do everything we can to help him through it."

Via San Antonio Express-News