There are signs at the school declaring it a "no gun zone", but investigators say just as the bell rang to let students out at Huffman, shots rang out, and two people were shot.
Lt. Peter Williston, spokesman for the Birmingham Police Department, said "no information will be released on that individual, pending a review of the case by the Jefferson County District Attorney's Office".
The shooting prompted a brief lockdown though students were subsequently released late Wednesday and authorities said they had subsequently determined that the shooting was not perpetrated by "someone from the outside" the school.
One student has been killed at a high school in a suburb of Birmingham, Alabama, while another is in critical condition.
Courtlin Arrington was preparing to graduate in May and had been planning to pursue her dream to become a nurse. "Our hearts are heavy", he said. According to AL.com, a 17-year-old boy was hospitalized for injuries sustained during the incident, and a school employee was treated on the scene for an injury. She would have turned 18 next month.
"Right now we have a lot of unanswered questions", said Wilson, who has also been interviewing students at the school about the incident.
The superintendent said Huffman has more than 43 entry points with a combination of wand and stationary metal detectors in place, but they were not in use Wednesday. He later added, "This is not a situation where someone came in and randomly fired from the outside". "This should not happen in schools", he said.
"We're hoping if we have footage, that it will reveal it", he said. "Every life is precious and even though this was an accident it reaffirms there's no place for students to have firearms on campus".
Gov. Kay Ivey said she's "praying for the family of this young lady who has tragically lost her life way too early".
Some of those students actually witnessed the shooting this afternoon. The AP reported that last week at the same high school, a gun was found outside one of the school's entrances after a threat against the school was reported. Varying proposals by Republicans would arm either teachers or volunteer security forces in schools.