Centanni joined FNC in 1996.
During Operation Iraqi Freedom, he served as an embedded journalist with the Navy SEALs and provided numerous first reports for the network, including a report that the U.S. had captured two main offshore oil terminals located 22 miles (35 km) off Iraq's southern coast, preventing them from being blown up by Iraqi forces.
Centanni retired in August 2014.
On August 14, 2006, he was kidnapped by Palestinian gunmen while on assignment in Gaza City, along with Olaf Wiig, a cameraman from New Zealand. A witness saw two vehicles blocking the journalist's transmission truck and a masked man put a gun to their bodyguard's head, forcing him to the ground.
An internal message by Fox News Channel Senior Vice President John Moody confirmed the abduction and instructed employees not to comment on it.
On August 19, Fox News Channel broadcast a video by Centanni's brother pleading for the reporter's immediate release.
On August 23, the Holy Jihad Brigades claimed responsibility for the kidnappings of both Centanni and Wiig. They demanded the release of all "Muslim prisoners" by the United States within 72 hours. A video was broadcast by Al-Jazeera. No armed men were in the video, and the captives appeared to be in good health.
On August 26, the three-day deadline passed uneventfully at 9:00 GMT. Hours earlier, Ismail Haniyeh, a senior Hamas official, said there were promises that the journalists "will not be harmed" and that he expected the situation to resolve in the "coming hours".
On August 27, the Palestinian news service Ramattan and FOX News reported that Centanni and Wiig were released unharmed, shortly after a new video was released. In the video, both journalists, wearing beige robes, read statements saying that they had converted to Islam, with Centanni stating "Islam is not just meant for some people; it is the true religion for all people at all times." After being freed, Centanni stated "We were forced to convert to Islam at gunpoint, and don't get me wrong here, I have the highest respect for Islam, and learned a lot of very good things about it, but it was something we felt we had to do, because they had the guns, and we didn't know what the hell was going on."
- "Fox News Bio Steve Centanni". Fox News Channel. Archived from the original on December 19, 2005. Retrieved August 15, 2006.
- "2 Fox News journalists kidnapped in Gaza". AP. Retrieved August 14, 2006.[dead link]
- "Gunmen kidnap Fox News journalists in Gaza: witness". Reuters. Archived from the original on August 23, 2006. Retrieved August 16, 2006.
- "FNCers Kidnapped In Gaza: "Pray For Their Release. I Will Keep You Posted" --Moody". Media Bistro. Archived from the original on May 29, 2007. Retrieved August 16, 2006.
- "New Group Claims Fox News Kidnappings". Associated Press. Missing or empty
- "Gaza militants claim Fox kidnap". BBC. August 23, 2006. Retrieved August 23, 2006.
- "Palestinians Hopeful on Fox News Crew". AP. Retrieved August 26, 2006.
- "Kidnapped Fox journalists released". CNN. Retrieved August 27, 2006.