The Devo star married Krista Napp in Santa Monica, California, on Friday (11Sep15), the 14th anniversary of the terrorist attacks in the U.S. that killed almost 3,000 victims.

The pair's reception featured a cake shaped like the World Trade Center's Twin Towers, and they gave guests sharp knives as presents, which were said to be a reference to weapons used by hijackers to gain control of the planes they flew into the landmark.

Casale told on Monday (14Sep15) that a friend had designed the theme, the cake, and the guests' gifts as a surprise for the couple, adding, "He thought it was some sort of transgressive sick humour, and the problem is, it's not funny... I apologize to anyone who (was) offended."