BETHESDA, Md. -- A heavily-armed former IBM engineer rammed his luxury car into an IBM office and sprayed automatic gunfire, killing two men and injuring 10 others during a seven-hour siege, police said.
Edward Mann, 38, of Mitchellsville, Md., surrendered to police Friday after trapping more than 100 IBM workers in the building, said Chief Bernard Crooke, of the Montgomery County Police Department.
'We have the door barricaded and we're not going anywhere,' Paul Howard, one of the workers, said by telephone minutes after the shooting began in the Washington, D.C., suburb.
Mann was charged on one count of murder and one count of assault with intent to murder, said Donald Allen, a county police spokesman.
Before giving up at 6:40 p.m. EDT Mann told police he was going to fire several rounds of gunfire at a picture in the office where he was holed up -- and surrender.
Major O.W. Sweat, the county's chief of detectives, said more charges are pending. Mann did not give a reason for the attack during questioning by police, Sweat said.
But Pam Coulter, 27, a reporter at WTOP radio in Washington, spoke with the gunman by telephone and said, 'He's unemployed. He said the company is very prejudiced but disguises it in a very business-like manner.'
Ms. Coulter said she was 'randomly picking numbers that I thought were IBM' when she dialed the gunman, who told her he was a former systemsengineer and salesman.
'He said 'Pam, why don't you come and get me,'' Ms. Coulter said. 'I said 'Would you surrender if I get out there?' and he said 'yes.''
Police asked the reporter to stay with them during negotiations between the gunman, his wife, Rosa, and a police psychologist, but she did not take part, Ms. Coulter said.
Crooke said Mann was an IBM employee for 12 years and 'voluntarily resigned' two years ago. 'He had some kind of grievance or legal action (pending) against the company,' Crooke said.
'Our negotiators talked with him very calmly,' he said. 'We worked out an agreement, and he talked things over with his wife (by telephone). Then he gave himself up.'
Mann was barricaded in an office on the top floor of the three-story building where some 700 IBM employees worked. He was dressed in combat fatigues and was armed with an automatic rifle, a shotgun and two pistols, Crooke said.
He told police he was holding hostages, but later officer found the gunman was alone.
During the standoff, dozens of IBM employees were barricaded in different parts of the building and evacuated by police.
Mann rammed his bronze Lincoln Continental through glass doors into the building's north lobby, leaped from the car and randomly shot at people, witnesses said.
The dead were identified as Hung Phi Nguyen, approximately 40, of Silver Spring, Md. and Larry Lewis Thompson, 56, of Vienna, Va., police said.
Ten people were hospitalized, three in critical condition.
