I thought it was saying the troops were under arrest. :D
That was my second thought. My first one was that troops who were under arrest shot him. I wondered why the troops were under arrest.
Nonono... He was shot by TROOPS THAT WERE UNDER ARREST. Got it?
I thought the headline was saying that the troops were under arrest when they shot him!
"The headline was a bit confusing."
It wasn't to me. It just says what it says, ie, "CBS Cameraman Shot By US Troops Under Arrest." That is, US troops, while under arrest, shot the cameraman.
"At first I thought it was saying he was shot while under arrest."
Nope, it says that the US troops, who were under arrest, shot the cameraman.