Washington ? Vice President Dick Cheney took full blame Wednesday for shooting a hunting companion, calling it “one of the worst days of my life,” but he was defiantly unapologetic about not publicly disclosing the accident until the next day.

“You can’t blame anybody else,” Cheney told Fox News Channel in his first public comments since the accident on a private Texas ranch Saturday. “I’m the guy who pulled the trigger and shot my friend.”

The vice president has been under intense political pressure to speak out about the accident, which has become a public relations embarrassment and potential political liability for the White House.

“We really didn’t know until Sunday morning that Harry was probably going to be OK, that it looked like there hadn’t been any serious damage to any vital organ,” he said. “And that’s when we began the process of notifying the press.”

Cheney was soft-spoken and appeared shaken as he described seeing 78-year-old Harry Whittington drop to the ground after he pulled the trigger on his 28-gauge shotgun while aiming at a covey of quail.

“The image of him falling is something I’ll never ever be able to get out of my mind,” Cheney told Fox’s Brit Hume. “It was, I’d have to say, one of the worst days of my life at that moment.”

Cheney defended his decision not to publicly disclose what happened until the next day, when he agreed to the suggestion of ranch owner Katharine Armstrong to have her announce it to a local newspaper. “I thought that was the right call. I still do,” the vice president said.

Whittington was in stable condition Wednesday at a Texas hospital.

Cheney said he was concerned that if the story broke Saturday night when information was still coming in, some reports may have been inaccurate since it was a complicated story that most journalists had never dealt with before.

“I’ve been in the business for a long time and never seen a situation quite like this,” Cheney said. “We’ve had experiences where the president has been shot. We’ve never had a situation where the vice president shot somebody.”