Son Of Missing Fox Exec Tweets 'I'll Never Stop Looking For Him'

LOS ANGELES (CBS) — Evan Christian Smith, son of Gavin Smith -- a Fox movie executive who has been missing for more than five days -- tweeted Sunday "Still looking for him. I'll never stop."

He also tweeted, "If my faith hasn't crumbled nobody's should. #GodisGood."

Smith's sister, Tara Addeo, flew in from Nevada this weekend. She told KCAL9 and CBS2 reporter Rachel Kim Sunday evening, that she spent six hours puttng up flyers all over Los Angeles Sunday. "We just want my brother back," she said. "We just want to see him again."

Smith, 57, who has been an executive in Fox's movie distribution division for more than 18 years, was last seen Tuesday leaving a friend's house.

Police do not suspect foul play. But they are baffled by Smith's disappearance.

He was supposed to pick up one of his son's Wednesday morning from his West Hills home but he never showed up. And that is very uncharacteristic of the Gavin Smith his friends and family know. Says Addeo, "He would not do this. We don't want to think the worst. We can't imagine he would just leave."

The 6 foot 6 inch Smith was a member of UCLA's 1975 national championship men's basketball team. Smith's son, Evan Smith, plays for the USC men's basketball squad.

The missing TV exec was last seen driving his black Mercedes 420E sedan (license plate:  6EKTO44) Tuesday evening near a friend's house in the 500 block of Callwood Court in Oak Park.

Smith's son also tweeted, "All the love and support you all have given my family has been the greatest."