Evening Edition: Top Iranian Nuclear Scientist Killed

An alleged assassination has killed Iran’s top nuclear scientist Mohsen Fakhrizadeh and Tehran is pointing blame at Israel. Fakhrizadeh is said to be the mastermind of Iran’s nuclear program. FOX’s Trey Yingst speaks with Yonat Friling, Senior Fox News Field Producer, about the killing and what we know about a possible Iranian retaliation.