*) She knew the truth would impact Obama’s reelection and her ability to get elected in Nov 2016.
*) She knew her “hacked” illegal email server would point to evidence that gave the enemy intel leading to the deaths of Stevens and the others who were murdered.
*) The phony video story was a diversion that enabled her the time to delete 30,000 email messages that would have proven her criminally suspect in the Embassy attack, the murders, the cover up, and the subsequent perjury while under oath.
*) Other criminal activity on the part of the players involved is just more water under the bridge.
*) That she seems to have gotten away with murder is most disheartening.
If anyone found out he was in charge of a huge arms smuggling operation with the CIA heads would roll.
He had asked for more security over 600 times another good indication that they didn't want him to be secure. The security he had,locals, was compromised and left immediately when the fighting started.
Several other embassies in the neighborhood had already closed due to intense fighting in the region.
Everyone knew Stevens was gay. Putting any individual in such a situation with terrorists everywhere who hated gays was really bad management and if found out would reflect poorly on zero and hillary.
Stevens knew way too much and was known to have loose lips among his associates. We see what happened when the terror types caught up to him.
They had many reasons not to want Stevens alive.