JACKSONVILLE, Fla. -

Facing the Jacksonville media Wednesday to talk about his DUI arrest on Sunday, Justin Blackmon said he couldn't talk about the case but was contrite about his behavior, saying, "Right now I'm done with all that."

His appearance in Jacksonville comes three days after he was stopped for speeding and charged with aggravated DUI after a traffic stop in Stillwater, Okla.

"First off, I want to apologize to (general manager) Gene (Smith) and (owner) Mr. (Shahid) Khan and his family and coach (Mike) Mularkey and the whole organization, my teammates," Blackmon said at a news conference at EverBank Field on Wednesday. "I want to apologize to my fans, to the people that looked up to me, because of what I did, the decision I made over the weekend."

"Just let people know that's not who I am, that's not who I'm going to be," Blackmon added. "I talked with Coach yesterday and Gene, and I'm looking to make things better."

UNCUT: Blackmon speaks about DUI charge

When Blackmon was pulled over for speeding early Sunday, he agreed to take a breathalyzer test and blew a .24, three times the legal limit.

"That's a pretty good level," said Dr. Mike Muntz, a neurosurgeon at Memorial Hospital. "I don't think it really matters if you're fat or skinny. If you have a .24 alcohol level in you, it's obviously going to affect your brain."

According to the California State University, somebody Blackmon's size would have to drink 12 drinks in one hour to reach a 0.24 blood alcohol level.

Blackmon said he doesn't have a drinking problem and that he just "made a poor choice and put myself in a bad situation." Nonetheless, he swore off alcohol for now.

Smith and Mularkey flanked Blackmon at the news conference and expressed disappointment with the former Oklahoma State star's behavior.

"He did not use proper judgment," Smith said. "This type of behavior is unacceptable."

It was the second DUI arrest for Blackmon, who had his previous charge reduced following an October 2010 incident.

"Justin let a lot of people down," Mularkey said. "Most importantly, we had this discussion, we talked with Justin yesterday morning, so he -- most importantly, family, this organization, his teammates, it is a mistake. It's a mistake I told Justin could turn into a very happy ending."

Blackmon declined to answer some questions because of the pending legal process. He pleaded not guilty Monday to the misdemeanor charge.

Blackmon has not yet signed with the Jaguars, and it was not immediately known how the charge might impact negotiations.

He remains free on $1,000 bond and is due back in court in Stillwater, Okla., on July 24 for another hearing in his DUI case.

Blackmon is Jacksonville's fourth first-round draft pick since 2000 to face problems after being selected. The team has tried for nearly a decade to find a suitable replacement for its best receiving tandem ever, Jimmy Smith and Keenan McCardell.

Former Arkansas quarterback-turned-wide receiver Matt Jones, selected in 2005, was charged with cocaine possession in July 2008 and ordered into a drug treatment program. He was suspended for three games in late 2008 for violations of the NFL's drug policy and cut in the spring of 2009.

The team's 2004 first-round pick, Washington wide receiver Reggie Williams, wasn't re-signed after being charged with drug possession in Houston in 2009.

And wide receiver R. Jay Soward of Southern Cal, taken in the first round in 2000, seldom played due to drug and alcohol problems that led to numerous suspensions.