Family members hug Wednesday outside the SuccessTech Academy in Cleveland. A gunman opened fire Wednesday at the alternative school and three children were taken to a hospital, the mayor said.

Cleveland ? When Asa H. Coon got suspended for fighting on Monday, this was the 14-year-old’s response to his schoolmates: “I got something for you all.”

He was still suspended Wednesday, but somehow he made it into the SuccessTech Academy alternative school, armed with two revolvers. Police also found a duffel bag stocked with ammunition and three knives in a bathroom.

Coon, who students say also had threatened them last week, shot two teachers and two students before committing suicide, police said.

It began, student Rasheem Smith said, after Coon left the bathroom and ran into 15-year-old student Michael Peek, who had no idea Coon was armed.

Coon “came out of the bathroom and bumped Mike and (Mike) punched him in his face. Mike started walking. He shot Mike in the side,” said Smith, 15.

Wearing a Marilyn Manson concert shirt, black jeans and black-painted finger nails, Coon walked down the hallway, cussing and firing shots. Witnesses said he moved through the converted five-story downtown office building, working his way up through the first two floors of administrative offices to the third floor of classrooms.

Antonio Deberry, 17, watched from under a lab table, where he crouched for 15 minutes until police led him and his classmates out. “He didn’t see us, we saw him,” he said.

Others hid in closets and bathrooms, alerted by the principal’s “Code Blue” over the public address system, or fled screaming down the stairs.

“They were screaming, and they were saying, ‘Oh my God, oh my God,'” said Darnell Rodgers, who was walking up the stairs. “I knew something was wrong, but thought that it was probably just a fight, so I just kept going,” the 18-year-old said.

“It took me a couple of minutes to realize that I was actually shot.”

Rodgers was released from a hospital after treatment for a graze wound to his right elbow.

Another student, Doneisha LeVert, said she hid in a closet with two other students after she heard the alert over the loudspeaker. She said she heard about 10 shots.

LeVert said Coon had made threats in front of students and teachers last week, but she believes no one took action.

“He’s crazy. He threatened to blow up our school. He threatened to stab everybody,” she said. “We didn’t think nothing of it.”

Coon had been suspended since Monday for fighting near the school that day, said Charles Blackwell, president of SuccessTech’s student-parent organization. He did not know how Coon got into the building Wednesday.

Blackwell said that there was a security guard on the first floor, but that the position of another guard on the third floor had been eliminated.

Student Frances Henderson, 14, said she often got into arguments with Coon, who told her Monday, “I got something for you all.” She said he usually wore a trench coat, black boots and a dog collar.

The school has about 240 mainly black students with a small number of white and Hispanic students.

Coon was white and Henderson is black, but she said she didn’t believe race played a role in the shootings.