It's apparent Eliud Martir Montalvo never heard of the old warning about taking a knife to a gunfight.
It was a retired Marine who was carrying a concealed weapon that brought a halt to Montalvo's alleged crime spree, which included a series of attempted carjackings in Orange County, Fla., this week.
According to WFTV-TV in Orlando, the suspect allegedly tried to steal four cars, one after another, on Tuesday.
Authorities said the attacks all were within a block of one another, and the episode was halted when a Marine Corps veteran, Andrew Koplin, pointed his concealed weapon at the alleged carjacker and kept it there.
According to the Orlando Sentinel, the rampage started when Montalvo tried to grab the car keys from Joan Shedd, 79.
She wouldn't give them up, and he kicked her to the ground before running off when a bystander chased him.
"He gave me a hard shove and I went backwards and landed on the cement, " Shedd told WESH-TV.
Things deteriorated when Montalvo then tried to carjack Connie Sue Gooley's truck nearby.
Montalvo had to pull a knife to convince Gooley to give up her keys, but when he opened the driver's door she slammed his head against the side of the truck.
On his third attempt, Montalvo allegedly tried to carjack Carissa Sanchez, who was at a stoplight in the street. But before he could get the car going, Koplin and another witness ran to the car, and the Marine veteran pulled his gun on Montalvo, who, once again, ran.
"I saw him get in a car with this young girl, and hold a knife to her throat, so I ran out in traffic, stood in front of her car and I put the laser on him. I told him to get out of the car," Koplin told WESH-TV.
He ultimately jumped into the passenger side of a fourth vehicle and grabbed the steering wheel from driver Linda Grya, but Koplin was there again, with his gun.
"It's not my nature to just go with it," Koplin told the TV station.
Koplin pointed his gun at Montalvo as he heard police sirens sounding.
"He knew better I think. He knew if he did anything to them, I was going to have to do what I had to do," Koplin said.
When Montalvo ran this time, police caught him.
"I knew if it came down to it, if I had to do it to save someone's life, but I was hoping I wasn't going to have to shoot him," Koplin said.
Online records show that Montalvo has been accused of kidnapping with a weapon, multiple counts of carjacking with a deadly weapon, several counts of aggravated battery with a weapon, attempted carjacking, counts of aggravated assault with a weapon, battery and battery on a person 65 years of age or older.