An Arizona gun store says it has canceled a recent purchase of an AR-15 semiautomatic rifle by Mark Kelly thwarting the retired astronaut's attempt to demonstrate how easy it is to buy high-powered weapons.
Kelly, the husband of former Rep. Gabby Giffords and an outspoken advocate for new gun control measures, had in recent interviews said he was buying the rifle to showcase what he said are unobtrusive background checks.
Doug MacKinlay, owner of Diamondback Police Supply, said it was Kelly's statements that caused him to stop the sale.FULL STORY
[Updated at 12:29 p.m. ET] The blast that killed seven U.S. Marines and injured eight others Monday night during a training exercise at Nevada's Hawthorne Army Depot was caused by a 60 mm round that detonated in a mortar tube, according to a military official.
[Posted at 9:22 a.m. ET] Seven U.S. Marines were killed and several others were injured during a training exercise Monday night at the Hawthorne Army Depot in Nevada, the Marine Corps said Tuesday.
The cause of the incident is under investigation, the Marines said.FULL STORY
[Posted at 6:12 a.m. ET] Police now say that the 36-year-old man who disappeared when a sinkhole opened up underneath his Brandon, Florida, bedroom early Friday is presumed dead.
It's not confirmed, but I think it's safe to presume," Hillsborough County fire department spokeswoman Jessica Damico said Friday morning.
[Posted at 2:11 a.m. ET] A 36-year-old man disappeared Thursday night after a sinkhole opened up underneath his bedroom in Florida, authorities said.
Right after the ground started to give way in his home in Brandon, the man's brother frantically tried to keep him from sinking into the hole, an emergency official said.FULL STORY
A medical helicopter crashed Monday night in northern Illinois, killing all three crew members, authorities said.
A pilot and two flight nurses were on board the chopper when it crashed near the city of Rochelle, about 75 miles west of Chicago, the Federal Aviation Administration said. The helicopter was not carrying any patients at the time.
The copter, which was registered to Rockford Health System, was flying from Rockford to a hospital in Mendota.
The cause of the crash is unknown. The FAA will deploy a team early Tuesday to investigate.
Editor's Note: A toxic cloud that formed after 300 gallons of hydrochloric acid leaked at a plant in southeast Texas sent nine people to the hospital and forced thousands of residents to stay indoors for a few hours. Here is the story.
¬†The following were the developments as they came in:
[Updated at 8:47 a.m.] The stay-indoors order has been lifted, according to the Texas City Emergency Management office. Roads that were closed in the south of the city also have been reopened, CNN affiliate KTRK reports.
[Updated at 6:35 a.m.] Officials say they expect to lift the stay-indoors order at 6 a.m. local time (7 a.m. ET).
[Updated at 8:15 p.m. ET] Officials at a U.S. Air Force Base in southern Arizona have called off their response to a security situation that prompted a base-wide lock down, the Air Force said Friday in a statement.
The release notes that "increased security measures were taken around the base following the unconfirmed sighting of a man entering an office building, apparently armed."
No further information was provided on the situation or the person, whom the release characterized as a "suspect." But the Air Force did state that its officials have "terminated" their response to the incident.
[Updated at 6:57 p.m. ET] A gunman is holed up in a building on a U.S. Air Force base in Tucson, Arizona, a U.S. military official said.
No shots have been fired and law enforcement teams are on site, said the official, who has direct knowledge of the situation from conversations with base officials but did not want to be identified.
[Initial post, 3:45 p.m. ET] Arizona's Davis-Monthan Air Force Base was placed on lockdown Friday morning after an unconfirmed report of a someone suspicious with a weapon, Tech Sgt. Russ Martin told reporters.[cnn-video¬†url="http://www.cnn.com/video/?/video/bestoftv/2011/09/16/az-air-base-lock-down.cnn"%5D
No shots have been fired, and nobody is hurt, said a different base representative, Staff Sgt. Caitlyn Jones.
Two schools on the base in Tucson, including Borman Elementary School, also were locked down. Perimeter and classroom doors were locked, and students are staying where they are, said Karen Bynum, executive assistant to Superintendent John Pedicone.
Base representatives said the report was being investigated, and that the reportedly suspicious person has not been located.FULL STORY