Hinkley High School students run while being fired upon by teenage boys in a nearby truck. Screen grab of school video obtained by Aurora Police.

AURORA | A fourth teenage boy has been charged with attempted murder in connection with the Nov. 19 shooting in the parking lot of Hinkley High School that left three teen students injured, according to court documents.

Alejandro Carillo Hernandez, 17, was charged with four counts of attempted first-degree murder and a variety of charges related to the shooting that left the school community reeling, according to officials from 18th Judicial District prosecutors in Arapahoe County.

The latest charge follows that of three others allegedly involved in the shooting and similarly charged. Three 16-year-old boys were charged Nov. 30 with attempted murder in connection with the case. 

A photo take by police of the driver permit of Alejandro Carillo Hernandez found in a back pack inside the truck during the investigation after the shooting. The details of the permit were obscured by Sentinel staff.

All of the boys, minors, were identified because they’re being charged as adults. District attorney officials justified charging the juveniles as adults because of the nature and gravity of the alleged crimes.

The Sentinel is including their identities, which are available to the public, to ensure clarity in news about the case and because of the nature of the crime.

In court documents, police said their investigation revealed the shooting was gang-related after boys accused of shooting said they were armed at the school in fear they would be jumped during a fight with rival gang members.

Hernandez was one of four other boys named in arrest affidavits implicated in court documents but not charged with crimes.

Police have declined to answer questions about the investigation, referring queries to the district attorney’s office.

District attorney officials said they will not comment outside of press statements until the case is adjudicated.

Also facing four counts of attempted first-degree murder and multiple other charges are Larry Renee Jefferson, Dalen Lenale Brewer and Diego Flores.

Police investigators said after interviews and watching video of the shooting unfold that Hernandez opened fire on a rival group of boys.

(Hernandez) appears to walk away from the group and appears to start shooting at the Boner Boys, seemingly without provocation,” according to the affidavit.

The Aurora detective investigating the shooting said that after Hernandez fired at the rival boys, he fled the scene.

The boys told police they armed themselves in preparation for a fight with “Boner Boys” gang members. 

One boy went to Hinkley in advance of the shooting, during lunch, to scout out members of the rival gang, saying that those gang members had shot up the house of others “several times in the past,” police said in an affidavit.

He said those gang members were there and a fight was imminent. He asked others to bring guns as back-up, in case any of the rival gang members at Hinkley were armed.

In an affidavit released Tuesday, police said an investigator “reviewed video of the incident and did not see any point where it appears a fight actually took place,” the officer said. He “also did not see anything that indicated that the  people believed to be associated with the Boner Boys were armed.”

One of the boys associated with the shooting told police he believed guns were a normal part of rival disputes in the area.

The boy said, “it’s the way it is in this town,” according to the affidavit.

The boys described a chaotic event where gunfire erupted quickly and three of the boys fired from the truck window as they sped away.

One student told police she was with her cousin inside a car in the parking lot and saw a pickup truck on the other side of the lot, near dumpsters. She said she heard gunfire, and then the driver of the truck came toward their car and drove past. As the truck drove toward them, she heard more shooting, then she realized she’d been shot in the backside and injured, according to the affidavit. Her cousin immediately drove her to a nearby hospital.

A boy wounded during the shooting said he had just returned to school after going for lunch nearby. He was with a friend inside his car with other students when they heard yelling. Thinking there was a fight about to erupt, he got out of the car and heard yelling, then shooting as students scattered. He began running for the front door of the school when he was shot in the back.

Numerous students described the truck and passengers to police. One student said he saw a black male get out of the truck and say, “You all are gonna get it,” according to the police statement.

Another student told police they saw a “Hispanic male with long hair on top with a pistol in his hand, firing it out of the driver’s side window of the truck,” according to the affidavit.

Aurora Public School school security officers Ronald Banks and Darius Walls were in a school district vehicle by the front of the school when they heard gunfire. 

“(Banks) said he exited the passenger side door and took cover behind the front of their vehicle,” according to the affidavit. 

He was unarmed at the time.

“(Banks) said he was yelling at the school children to get inside and to get down so they would not get shot.”

Turning toward the truck, Banks said he saw the muzzle of a gun coming out of the rear passenger window of the truck. He saw Walls then fire his gun at the truck as it moved past, exchanging gunfire. Neither officer was hit.

It’s unclear whether that’s how one of the boys inside the truck was injured by a bullet.

The boys sped away and split up.

Police were quick to identify them and spent the next few days tracking down everyone in the truck, saying they had sorted out who fired weapons during the melee.

Charges filed against each of the three boys named include:

4 counts of attempted first-degree murder 

1 count of first-degree assault

1 count of second-degree assault

1 count of possession of a weapon on school grounds

2 crime-of-violence sentence enhancers

Jefferson was also charged with one count of using a prohibited large-capacity magazine during a crime.

Jefferson, Hernandez and Brewer are slated for court appearances next at 8:30 a.m. Dec. 15. Flores is slated for a hearing at 8:30 a.m. on March 7, 2022.

This shooting, and a shooting outside of Aurora Central High School days before, have prompted a community push to analyze and address growing gun violence, especially among teenagers and young adults.

APS district officials have since closed school campuses during lunch and are providing additional security at the time.