Police: All Empire State Shooting Victims were Wounded by Officers
All nine people injured in Friday's shooting in front of the Empire State Buildingwere wounded by police gunfire, New York Police Commissioner Ray Kelly told reporters Saturday.

The officers unloaded a total of 16 rounds at a disgruntled former apparel designer, killing him after he shot and killed a co-worker and engaged in a gunbattle with police, authorities have said.

Police said an investigation is under way after one officer shot nine rounds while another shot seven. Three victims suffered gunshot wounds, while the remaining six were hit by fragments.

The gunman, who served in the U.S. Coast Guard in the late 1970s, had two rounds left in his .45-caliber pistol. It holds eight rounds, Kelly said.

The violence erupted Friday morning just as visitors began to queue up to ascend the famous New York skyscraper in one of Manhattan's busiest neighborhoods.

Police identified the shooter as Jeffrey Johnson, 58, who was apparently laid off from his job as a designer of women's accessories at Hazan Import last year.

"We have on tape the perpetrator pulled his gun out and tried to shoot at the cops," Mayor Michael Bloomberg said Friday. "Whether he got off any bullets or not, to be determined."

Kelly had said the bystanders were not hit directly by police, but rather the officers' struck "flowerpots and other objects around, so ... their bullets fragmented and, in essence, that's what caused the wounds."

Six of the wounded were treated and released at hospitals by Friday evening, while three others remained hospitalized, Kelly said.

One of those wounded, Erica Solar, was on her way to get a cup of coffee at Dunkin' Donuts when a bullet tore through the back of her leg, her brother said. The Manhattan receptionist is being treated at the city's Bellevue Hospital.

Robert Asika, a 23-year-old city tour guide, was on his way to work when he got caught in the crossfire.

"When I turned around, I saw a guy reach in his suit and he pulled out a gun," he told CNN affiliate WCBS-TV. "I guess he shot at the police officer. And the police officer shot him. And one of them shot me in the arm, and I fell."

The slain victim was identified as Steven Ercolino by the president of State University of New York at Oneonta, where he was a 1992 graduate.

"We were saddened to learn that a member of our Oneonta alumni community was the victim of this tragic and senseless killing," Nancy Kleniewski said. "Our thoughts and prayers are with Steve's family."

Ercolino, 41, is listed as a vice president of sales at Hazan Import Corp., according to his LinkedIn profile.

"It's not something that should happen to a loving person like that," his brother Paul Ercolino told CNN on Friday night. "He's going to be so missed by everybody. He was a light of so many lives."

Johnson had a longstanding dispute with Ercolino "apparently centered on the fact that Ercolino was not selling -- at least in Johnson's opinion -- as much of his product ... as he wanted him to," according to Kelly.

The suspect lost his job last year "as a result of downsizing" but continued to return to the company regularly, having "a confrontation with Ercolino virtually every time he went back," said the police commissioner.

Both men filed harassment complaints against each other in April 2011, Kelly added.

On Friday, Johnson was wearing a business suit and carrying a briefcase as he waited for Ercolino outside his business on West 33rd Street. When Ercolino appeared, "Without any conversation, he shot him once in the head and then shot him in the torso," the police commissioner said.