I don't know what to think about this story.
On one hand, Iran and Saudi Arabia have had very bad relations, and Iran might be trying to indirectly scare the American government as well.
Nevertheless, it seems quite illogical for the Iranian government to try to harm a Saudi in America. There are plenty of other Saudi embassies that Iran could have targeted. In addition, the American government has plenty of reasons to blame Iran for a terrorist act within its own borders.
What do you all think?