On Thursday, a Mexican national who acquired lawful permanent residency in 2018 confessed to his crime in court. He admitted to binding three pens with hair ties and attempting to stab a fellow passenger “through the eye to reach his brain” during a flight from Seattle to Las Vegas, federal authorities reported.
The shocking incident erupted roughly 30 minutes before the aircraft’s scheduled landing in Las Vegas. Julio Alvarez Lopez purportedly got up from his seat, headed to the restroom, and upon return, commenced to attack a passenger seated diagonally from him with punches and jabs, as outlined in a federal criminal complaint accessed by News Media.
Witnesses shared with investigators that the scene was drenched in blood while the victim’s wife frantically urged Lopez to cease the assault on her husband. Amid the chaos, the complaint notes she was hit as she tried to protect their 7-year-old son.
Following the assault, Lopez reportedly proceeded toward the front of the plane, asserting repeatedly, “I’ll only talk to the FBI,” as he strode up the aisle, according to an eyewitness account provided to investigators.

Federal officials revealed that Julio Alvarez Lopez crafted the improvised weapon by tying together three pens with hair bands before executing the attack on a flight passenger. (U.S. Department of Justice)
A sworn law enforcement officer aboard the flight ordered Lopez to sit down before flight attendants provided flex cuffs and passengers restrained him for the remainder of the flight, according to the complaint.
The flight landed safely at Harry Reid International Airport in Las Vegas, where officers with the Las Vegas Metropolitan Police Department took Lopez into custody.

Federal court records show injuries around the victim’s eye after prosecutors say he was attacked aboard a flight on Jan. 24, 2024. (U.S. Department of Justice)
According to the U.S. Attorney’s Office for the District of Nevada, Lopez pleaded guilty to one count of assault with a dangerous weapon stemming from the Jan. 24, 2024, attack.
During an interview with FBI agents and after waiving his Miranda rights, Lopez admitted he made the weapon before boarding the aircraft by bundling three pens together with hair bands.
Investigators said Lopez told them he believed the victim, identified in court documents as C.R., had been following him during the flight. Lopez also said he believed C.R. “was the Cartel” and that he was trying to get him to stop following him.
The complaint further states Lopez told investigators he had never seen C.R. before the flight but, “planned on attacking and killing him.”
According to investigators, Lopez admitted he intended to kill the victim by stabbing him in the eye.
“I planned on attacking and killing him,” Lopez told investigators, according to the complaint.
Lopez also admitted to investigators he was trying to stab C.R. “through the eye to reach C.R.’s brain to kill him.”
According to prosecutors, the victim suffered injuries to his body and eye area that required stitches.
Court documents say witnesses noticed Lopez acting strangely before the attack. One passenger told investigators Lopez appeared “fidgety,” repeatedly put gloves on and took them off, got into his backpack several times and avoided making eye contact with other passengers.

Images released by the U.S. Department of Justice in connection with a pen knife attack on a Las Vegas flight. (U.S. Department of Justice)
A witness described Lopez as having “gray/white hair tied in a bun on the top of his head,” and wearing a sweatshirt at the time.
Another witness said Lopez stood up twice as the aircraft began descending into Las Vegas, went to the restroom, then returned to his seat before suddenly launching the attack.
The complaint also states Lopez told investigators he was seeking asylum in the United States and believed the mafia had been chasing him for several months.
Lopez is scheduled to be sentenced on Sept. 22.