SAN DIEGO -- The U.S. military has yet to confirm the kidnapping of Marine Cpl. Wassef Hassoun. Videotape apparently shows the 24-year-old being held captive by Iraqi insurgents who claim he could be beheaded if his captors' demands aren't met.

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Hassoun's family -- both in Lebanon and in Utah --- are convinced the videotape they've seen is Hassoun, 10News reported.

"It is him, 100 percent. I wish it was not him. But I've seen him. I know he's my brother," Sami Hassoun said.

Hassoun said his family is shocked to see the images of Islamic militants holding hostage a fellow Muslim and U.S. Marine.

"You don't know what to do and you don't know if you're going to believe it or not. It's like a dream you're seeing. It's very hard. It's just very hard," Hassoun said.

Wassef Hassoun has been missing since June 19 in Iraq, according to 10News.

Speaking from Lebanon, Hassoun's brother begged kidnappers to release Wassef -- a member of the 1st Marine Expeditionary Force based at Camp Pendleton.

Hassoun lived with his brother and relatives in the Salt Lake City suburb of West Jordan. A family spokesperson said they are still trying to make sense of what has happened.

"We appreciate and thank everyone from the local and national communities for their outpour of support," Hassoun family spokesman Terek Nosseir said.

And more pleas are coming from Hassoun's father, who spoke directly to the men allegedly holding his son.

"I ask them for the sake of God, Prophet Mohammed and their children to release my son and they will have a great reward from God," Mohammed Hassoun said.