LAS VEGAS (AP) - A man dressed in black walked into a federal building Monday in downtown Las Vegas and opened fire with a shotgun, killing a court security guard and wounding a U.S. marshal before he was shot to death in a running gunbattle.
The gunfire erupted moments after 8 a.m. at the start of the work week and lasted for several minutes. Shots echoed around tall buildings in the area, more than a mile north of the Las Vegas Strip. An Associated Press reporter on the eighth floor of a high-rise within sight of the federal building heard a sustained barrage of gunfire.
A passer-by said he counted at least 40 shots.
"The first shot that I heard was a shotgun blast. I knew it wasn't fireworks," said Ray Freres, 59, a sandwich shop manager and Vietnam veteran who said he was behind the federal court building at the time.
"I heard an exchange of gunfire. I was watching the street," Freres told the AP. "If they were coming my way, I was going the other way."
The U.S. Marshals Service said the victims included a 48-year-old deputy U.S. marshal who was hospitalized and a 65-year-old court security officer who died.
Authorities did not immediately release the names of the victims or the gunman.
U.S. Sen. John Ensign, R-Nev., told reporters it appeared the gunman acted alone and the shooting was not a terrorist act.
"Right now they have no motive established," Ensign told a news conference outside the building. "Bottom line is, he didn't get past security."
Chief Deputy U.S. Marshal Roxanna Lea Irwin also said authorities believe the shooter acted alone.
The man, dressed in black pants, shirt and jacket, opened fire in front of a set of security metal detectors just inside the rotunda of the federal building, FBI Special Agent Joseph Dickey said.
"From what witness accounts have said, he walked in with a shotgun underneath his jacket and opened fire when he opened the doors," Dickey said. "Seven officers responded and returned fire."
Ensign said the guard who died had been shot in the chest. Nevada Gov. Jim Gibbons identified the dead officer as a retired Las Vegas police officer.
A YouTube video recorded the sound of the running firefight as the man retreated across Las Vegas Boulevard toward another federal building and a historic school.
"I could see guards and everything coming out, and then all of a sudden I just started hearing pop, pop, pop. I mean, just like 30 or 40 shots," said Troy Saccal, a tax services manager who was arriving for work at the time.
Saccal said he thought he saw one guard slump to the ground and another move to help him.
The gunman died moments later in the bushes outside the restored Fifth Street School, where his body remained for several hours.
A Las Vegas police spokeswoman, Officer Barbara Morgan, said the man had been shot in the head.
Dickey said about midday that investigators had identified the gunman but were not immediately releasing his name.
John Clark, director of the U.S. Marshals Service in Washington, did not immediately identify the officers, but called them heroes.
"The brave and immediate actions of these two individuals saved lives by stopping the threat of a reckless and callous gunman," Clark said in a statement.
Alina Shell, a lawyer in the federal public defender's office, said she didn't see the shooting, but heard it.
"There was a LOT of gun fire," she said in an e-mail, "and there was no mistaking where it was coming from."
Bullet holes marked the entrance of the eight-story modern federal building, which was locked down after the shootout and closed for the day. After police arrived, paramedics helped two people out and down a ramp to ambulances.
A helicopter view showed heavily armed officers in flak jackets scouring the federal building's roof. Shortly afterward, employees in small groups were escorted by armed officers to the auditorium of the Las Vegas Academy, a school three blocks away.
Dickey called the building evacuation "standard procedure" in such an incident.
The gunfire erupted as downtown was busy with office workers and jurors reporting for duty, both at the federal building and the 16-story Regional Justice Center, which houses state and local courts two blocks away.
The state courthouse was evacuated as a precaution and closed for the day, court spokesman Michael Sommermeyer said.
The Lloyd D. George U.S. Courthouse and Federal Building opened in 2002 and is named for a longtime senior federal judge who still hears cases. It has federal courts covering Nevada and offices for federal officials including Ensign and fellow U.S. Sen. Harry Reid. Neither was in the building at the time, authorities said.
The structure was touted as the first federal building built to comply with blast resistance requirements following the 1995 bombing of the Alfred P. Murrah Federal Building in downtown Oklahoma City.
