Falcon Lake Shooting

Mexican officials and American authorities are still searching for the body of 30-year-old David Hartley, four days after he was reportedly shot in the head by pirates while jet skiing on a lake that straddles the U.S. and Mexico.

David and Tiffany Hartley

But now Mexican authorities are questioning whether the attack took place at all. In a statement, Marco Antonio Guerrero Carrizales, district attorney for Miguel Aleman Province, writes, "We are not sure. We are not certain that the incident happened the way they are telling us."

David and Tiffany Hartley

Hartley and his wife, Tiffany, were riding personal watercraft back from Mexico on Falcon Lake around 2:45 p.m. Thursday, when approximately six gunmen approached in two boats and opened fire, said Zapata County Sheriff Sigifredo Gonzalez.

David and Tiffany Hartley

Though it is unclear what exactly happened to Hartley, the sheriff said he was apparently shot when the couple attempted to flee after they spotted the boaters. His wife was not hurt and reportedly tried circling back to pull her husband from the water, but she was forced to speed away to U.S. waters after the gunmen opened fire again.

David and Tiffany Hartley

The district attorney questions why Hartley's body has not been recovered, particularly because they were told he was wearing a life vest, and there is also no sign of his jet ski. In fact, he contends, no evidence exists that a crime was committed.

David and Tiffany Hartley

In response to these new questions, Tiffany Hartley told the CBS News' "The Early Show" she can understand the questions, but claimed the Mexican authorities have not been looking for her husband.

David and Tiffany Hartley

"As far as we know, we don't think they have been looking. And there is -- we understand the possibility that the people who did this probably have him. And that's why maybe they can't find him," she told the morning program.

Tiffany Hartley

Mexican officials and American authorities are still searching for the body of 30-year-old David Hartley, four days after he was reportedly shot in the head by pirates while jet skiing on a lake that straddles the U.S. and Mexico.

Tiffany Hartley

But now Mexican authorities are questioning whether the attack took place at all. In a statement, Marco Antonio Guerrero Carrizales, district attorney for Miguel Aleman Province, writes, "We are not sure. We are not certain that the incident happened the way they are telling us."

Tiffany Hartley

Hartley and his wife, Tiffany, were riding personal watercraft back from Mexico on Falcon Lake around 2:45 p.m. Thursday, when approximately six gunmen approached in two boats and opened fire, said Zapata County Sheriff Sigifredo Gonzalez.

David and Tiffany Hartley

Though it is unclear what exactly happened to Hartley, the sheriff said he was apparently shot when the couple attempted to flee after they spotted the boaters. His wife was not hurt and reportedly tried circling back to pull her husband from the water, but she was forced to speed away to U.S. waters after the gunmen opened fire again.

David and Tiffany Hartley

The district attorney questions why Hartley's body has not been recovered, particularly because they were told he was wearing a life vest, and there is also no sign of his jet ski. In fact, he contends, no evidence exists that a crime was committed.

David and Tiffany Hartley

In response to these new questions, Tiffany Hartley told the CBS News' "The Early Show" she can understand the questions, but claimed the Mexican authorities have not been looking for her husband. "As far as we know, we don't think they have been looking. And there is -- we understand the possibility that the people who did this probably have him. And that's why maybe they can't find him," she told the morning program.

David and Tiffany Hartley

In response to these new questions, Tiffany Hartley told the CBS News' "The Early Show" she can understand the questions, but claimed the Mexican authorities have not been looking for her husband. "As far as we know, we don't think they have been looking. And there is -- we understand the possibility that the people who did this probably have him. And that's why maybe they can't find him," she told the morning program.