CLEVELAND - An armed robber picked the wrong house to raid and ended up behind the barrel of his own shotgun.

Police say it happened at around 2 a.m. Friday after officers received a call for a home invasion at 9504 Lamontier Avenue.

The grandson of the homeowner, 68-year-old Josephine Clark, was sitting on the porch, talking on his cellphone when an armed man approached him.

Authorities say the robber made the grandson strip and then demanded money. He then marched the grandson at gunpoint inside the house and continued on his criminal mission.

Soon after, the crook woke up the homeowner's son and other grandson, by striking them over the head with a shotgun.

Clark was sound asleep downstairs when she heard the noises upstairs. She told Fox 8 News, at first, she thought the noise might have been her grandchildren.

"I thought, 'what are these boys doing?' So I got up," Clark said.

But as she went to check, Clark says the man hit her across the face, knocking her to the ground.

He then allegedly pointed a gun at her and said he was going to kill her. Clark says her family members became enraged. "Oh no! They weren't going to let that happen," says Clark.

That's when her family took action. According to a police report, Clark's son, 40-year-old Robert Clark, grabbed the intruder's shotgun and fired it at him four to five times, killing him.

"Oh. It was really bad," said Clark.

Cleveland Police responded and began investigating, but at this time, it appears the family was well within their rights.

Clark, her son and grandsons were treated at the Cleveland Clinic for severe gash wounds and broken bones.

Clark says she still can't believe that the robbery and shooting happened. "It just doesn't make any sense," she says."

But if any other crooks get the same idea, the petite grandmother has a message for them.

"Don't!" Clark advises. "My kids aren't gonna let you bother me so you might as well go on home."

The name of the suspect is being withheld pending family notification.

Stick with Fox 8 News and FOX8.com for more information as it becomes available.