Ol' Metal Mouth is back
Iron Jaw was a great villain who kept coming back to plague Chuck Chandler, Crimebuster, Loover of the FBI, and even some crooks who got in his way. He was a take-no-prisoners kinda villain.
This comes from Boy Comics #13, December 1943. It's drawn by Norman Maurer, a staple of Charles Biro's comic book bullpen for several years. Maurer partnered up with Joe Kubert in the early 1950s. At St. John Publishing they unleashed 3-D comic books on the world.
Aside from the grisly splash panel Iron Jaw doesn't show up until late. The first part of the story is taken up by two low level criminals and their fence, Wart.
Try as I might I can't think of any other comic book of this era that had a villain yell "Damn you!" It's on page 15.