If the Iranian leadership were innocent, they would offer to help find the bad guys. But instead, they attempt to deflect attention from themselves by pinning the blame on others. This is a typical ploy of a psychopath/sociopath. I know this from having dealt with so many of them over the years.
Saudi-led coalition air strike kills around 30 Yemeni civilians (Reuters)
from the article: Report: Iran sought to strike Jewish, U.S. targets in Azerbaijan