The search for "trigger" delivered 2 verses in 2 songs on 2 records.
The dragon searched for the following: "trigger" as keywords
Here are the matching verses:
Dio: Lock Up The Wolves
9. Twisted
He was the fortunate one
He could have pulled the trigger
But he couldn't get the gun
They told him that he was blind
He didn't understand
'Cause he could see them inside
Dio: Strange Highways
10. Here's to you
All for one, it's one for all
Now you can pull the trigger
As we're knocking down on the wall
When you finally shoot too high
The lie will always bring it down