When are reporters going to check the facts before publishing a story? (If the mis-dentification of the robber's weapon initially came from the police, that isn't an excuse. Very few police officers are gun experts, but I guess they could have read the text imprinted on the side of the gun which identifies it as an AB-10.) The resources are available to check the facts. Makes me wonder how many other "facts" in this story and most others are very wrong.
Stating that the weapon involved was a Tec-9 when it was really an AB-10 is like saying someone was run over by a tour bus when the vehicle was really a Volkswagen Beatle. I guess expecting accuracy from reporters is too much to ask.

Given that the AB-10 was meant as a replacement for the TEC-9, only having modifications to get around the assault weapons ban, it's probably more like confusing a Toyota Camry with a Corolla.

Which side of the gun is the text on? Looking at the photos from the other day, it looks as if the police weren't yet touching any of the evidence. Maybe the text is on the right side (if there even is any) Given that it's a fairly rare weapon, I can't blame people for getting it wrong.

I don't get the headline?

Me either.
Maybe it's cause they're scary military-looking weapons? I'm no gun-smith, but I'd be alot more fearful of a shot gun full of bird shot at 20 feet than this thing. With a barrel that short, accuracy is well, I guess that's why it can hold 30 rounds. Five feet, yeah, I'd need a new pair of shorts.