There was an outpouring of grief this week over the death of Steven Sotloff. He was the second American journalist beheaded by Islamic State militants. Sotloff was Jewish. ISIS released a video of his death, as it did with journalist James Foley, who was beheaded two weeks ago. The killings drew outrage from Muslim-American groups, including the Council on American-Islamic Relations:

Nihad Awad: “We have to say that ISIS and its conduct is antithetical to Islam. Their behavior is morally repellent and cruel, it is horrifying for us to see a group of terrorists, criminals, claiming to act as Muslims.”

Meanwhile, President Obama denounced Sotloff’s murder and vowed to defeat ISIS. More reports of atrocities committed by ISIS surfaced this week. Human Rights Watch charged ISIS with carrying out mass executions of up to 770 captured Iraqi soldiers.