Friends and family of missing Fox executive Gavin Smith canvassed Sylmar, Calif. Sunday, plastering posters of his face and the black Mercedes he was last seen driving on storefronts and restaurants around town.

The family was working on a tip from investigators who had said that a cellphone tower in the area had received the last ping from Smith's mobile phone, reports CBS2.

However, the canvass doesn't indicate a new development in the search for Smith, said Los Angeles Sheriff's Department spokesman Steve Whitmore to the Los Angeles Times. Whitmore told the Times that Sylmar had "no significance" and that "there is no new information," but he did praise the family's continued effort to search for Smith.

In all, about 550 flyers were passed out in the area Sunday, reports City News Service.

Investigators served a search warrant on a convicted drug dealer's house in connection with the search for Smith in June. He was reportedly having an affair with Chandrika Creech, the dealer's wife, before he disappeared, according to E! News sources.

When asked about Smith's connection to the Creech household, wife Lisa Smith told CBS2, "I have no comment. I want to find my husband."

Referencing her three sons, Evan, Austin and Dylan, she continued: "They’re looking for their dad and everything else is not important ... We’re on a mission here. We want to find him. Find his car. Find out what happened."

Smith's family has offered a $20,000 reward for information that will lead to the missing executive, and they've set up a website called FindGavinSmith.com to help coordinate search efforts. However, it has not been updated since May 17.

Smith is a distribution executive for 20th Century Fox who has worked on films like "Avatar" and "Star Wars." In 1975, he played on UCLA's championship basketball team under legendary Coach John Wooden.

He was last seen wearing purple workout pants and black and gray shoes, as he left the home of a family friend in Oak Park at about 10 p.m. on May 1 in his black Mercedes.

Investigators are asking that anyone with information call (323) 890-5500.

Related on HuffPost:

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  • May 1, 201: Gavin Smith Last Seen

    Gavin Smith was last seen at his home on the 500 block of Callwood Court in Oak Park, Calif. He left in his 2000 black Mercedes Benz wearing purple pant and black and grey shoes.

  • May 4, 2012: LASD Releases Missing Person Bulletin

    Four days after he was last seen, the Los Angeles Sheriff's Department released a missing person bulletin about Gavin Smith.

  • May 7, 2012: Smith's Family Launches Website

    <a href="http://www.huffingtonpost.com/2012/05/08/gavin-smith-missing-find-gavin-smith-site_n_1501195.html" target="_blank">Smith's family launched</a> the "<a href="http://findgavinsmith.com" target="_blank">Find Gavin Smith</a>" site to get the word out about his physical description, contact information and details about canvassing and search parties. It was last updated May 17, 2012.

  • May 9, 2012: Smith Sons Go Public

    Smith's three sons went to <a href="http://www.insideedition.com/headlines/4329-family-of-missing-hollywood-studio-exec-continues-search" target="_blank">Inside Edition</a> to urge Americans to help find their father. They also spoke about how they were skipping school to help with the search. Check out <a href="http://www.insideedition.com/headlines/4329-family-of-missing-hollywood-studio-exec-continues-search" target="_blank">Inside Edition</a> to learn more about the toll the search was taking on the family.

  • May 24, 2012: Unconfirmed Reports Of A Sighting

    NBC LA reported that locals at tourist destination Morro Bay spotted someone who looked like Gavin Smith at a restaurant. They also claimed he was with a tall female companion. Morro Bay is located on the central coast of California. To see video of interview with Morro Bay residents, <a href="http://www.nbclosangeles.com/news/local/Missing-Fox-Executive-Gavin-Smith-Morro-Bay-Taco-Temple-Sighting-LA-County-Sheriffs-153446535.html" target="_blank">check out NBC LA</a>.

  • June 5, 2012: $20,000 Reward Announced

    Gavin Smith's family offers a $20,000 reward for information that could help bring the missing husband and father home. Check out <a href="http://losangeles.cbslocal.com/2012/06/04/family-to-offer-20k-reward-for-information-leading-to-fox-executives-return/" target="_blank">CBS2/KCAL9 for video</a> of the story.

  • June 9, 2012: Detectives Search Creech Home

    Los Angeles sheriff's investigators search the home of convicted drug dealer John Creech. <a href="http://articles.latimes.com/2012/jun/10/local/la-me-0609-fox-executive-20120610" target="_blank">Cops left with a computer</a>, boxes and a black SUV, reports the Los Angeles Times. Creech lived in the home with with Chandrika Creech, and a lawyer confirmed to the Times that it was in fact the second time police had search the property. Check out <a href="http://losangeles.cbslocal.com/2012/06/21/e-missing-fox-executive-is-romantically-tied-to-married-woman-whose-house-was-searched/" target="_blank">CBS2/KCAL9</a> for footage of the search and comment from Smith's sister.

  • June 10, 2012: Smith Family Continues To Search

    Friends and family continued to search for Gavin Smith in Sylmar, Calif. Sunday because a tower in the area had received the last ping from his cellphone before he disappeared.

  • June 21, 2012: E! News Reports On Romantic Link

    <a href="http://www.eonline.com/news/325213/sources-missing-fox-exec-gavin-smith-had-affair-with-woman-whose-house-was-searched-by-police" target="_blank">E! News reports</a> that Gavin Smith was romantically linked with Chandrika Creech. The pair met in therapy in 2008 and started to have an affair, according to an anonymous source. John Creech reportedly learned of the affair and asked his wife to end it.

  • March 14, 2013: Missing Persons Case Becomes Homicide Investigation

    Police are calling Smith's case a homicide investigation after the discovery of his <a href="http://latimesblogs.latimes.com/lanow/2013/03/gavin-smith-car-found-homicide-case.html" target="_blank">Mercedes Benz in a storage facility</a> linked to John Creech, reports the Los Angeles Times. No body has been recovered.