Two boys, 14 and 15 years old, were killed and two other teens were wounded in a shooting outside Benito Juarez High School on Friday afternoon.

The shooting happened around 2:30 p.m. in the 2100 block of South Laflin Street just as classes were starting to be dismissed for the day at the West Side school, officials said.

Brandon Perez, 15, and Nathan Billegas, 14, were pronounced dead at Stroger Hospital. Both suffered gunshot wounds to the head, according to Chicago police.

Two other teens, a 15-year-old boy and a 15-year-old girl, were in good condition at the hospital, officials said. The boy was struck in the thigh and shoulder; the girl suffered a graze wound, police said.

A radio dispatch to officers said a suspect in a black mask, black hoodie and black North Face jacket was seen running west on Cermak Road and north on Ashland Avenue.

Police Supt. David Brown told a news conference Friday evening that investigators have not identified any suspects and had no one in custody.

He also could not confirm whether the victims were Juarez students or whether any were targets of the gunfire. He said investigators were looking at video but did not indicate what it showed.

“We are early in this investigation,” Brown said as he repeatedly had no answers for reporters.

A clerk who answered the school’s main office phone said Juarez went on lockdown immediately after the shooting, but police gave an all-clear around 3:30 p.m.

A sophomore who gave only his last name, Nava, said he had been waiting in front of the school for his dad to pick him up when he heard shots down the block toward Ashland.

“It was crazy,” Nava said outside the crime scene Friday evening. “I heard two shots and then everyone started running and went inside.”

The 15-year-old went back inside and called his dad, who wasn’t far away.

His 46-year-old father said he rushed through traffic to reach his son. “I was so nervous, I ran through the lights. I didn’t care,” he said.

A senior, who gave his name only as Marcel, was joining the crush of students on their way out the door when the shooting started.

“It was packed outside,” he said. “I only heard three shots but already there were two people on the ground.” He went back inside with the rest of the students.

Guillermo Niño is an anti-violence worker with the group Enlace. He said he has been showing up at scenes of gun violence for 15 years to provide resources for victims, but this time the call came from one of his two daughters, who attend Juarez.

One is a sophomore; the other, a senior, after hearing gunfire, called him from a teacher’s car, where she was hiding.

“Daddy, there’s a shooting going on here,” she told him.

He hung up to check on his other daughter and soon arrived with a few of his colleagues.

“Are my kids going to be scared to come to school? This is supposed to be a safe haven,” he said. “For them to have to be running to survive a shooting, it’s not cool.”

As students were allowed to leave, several of the school’s social studies teachers waited outside, checking in with them.

“I don’t know how they’re doing,” said one of the teachers, who’s been at Juarez for 8 years. “It sucks. You hear about shootings around the city, but then it comes to where you are.”

A junior named Gio said he was in his car in a school parking lot, about to go home, when the shooting started.

“I was shook because the shooting happened right there in front of the school,” he said. “It was like they were waiting.”

The school held a community event earlier Friday with food and performances from the school’s dance and drum teams, with free hams handed out ahead of the Christmas holiday.

Chicago Public Schools CEO Pedro Martinez, a Juarez alum, was the first in his family to graduate high school. Martinez and Mayor Lori Lightfoot hosted his introductory news conference at the school after he was hired in September 2021.

Martinez joined Brown for the late afternoon news conference.

“Of course I’m very concerned that this happened on our grounds,” Martinez said. “We will fully cooperate with CPD. They are great partners for us.”

The district will work with the principal and staff over the weekend to ensure counseling services are in place for students when they return Monday. Security will also be stepped up, though school officials gave no details.

“The CPS Office of Safety and Security and other District leadership are working closely with school leadership and staff as well as CPD to gather information and respond to this incident,” a CPS statement on Friday evening said. “CPS will keep Benito Juarez families updated as well as the greater community. Our thoughts are with all those impacted by this tragedy.”

Among those who showed up at Juarez to check on students and teachers were Aida Flores and George Gieger, who both grew up in Pilsen and attended Juarez. Flores briefly worked there.

Both now work in education, which they attributed in part to the teachers they had at Juarez. “Some of these teachers used to be my colleagues. I had to come check on them,” Flores, 37, said.

The couple are raising a boy in the Pilsen neighborhood and wonder what would’ve happened if he were just a few years older.

“It’s devastating,” said Gieger, 38. “That’s where he potentially could be going one day.”

Contributing: Allison Novelo, Zack Miller.