Facebook co-founder and chief executive Mark Zuckerberg, speaking today at the company’s annual developers conference, expressed condolences for the victim of a recent murder in Cleveland, Ohio, that was shared in a video on the social networking site.

Zuckerberg mentioned Robert Godwin Sr., the 74-year-old victim, by name, expressed condolences to his family and friends, and said, “We have a lot of work ... we will keep doing all we can to prevent tragedies like this from happening.” The brief remarks came on the heels of an official statement from Facebook, in which the company said it would be reviewing its “reporting flows” in order to allow people better report content that violates Facebook policies.

After addressing the topic of the murder, Zuckerberg quickly moved on to discuss the company’s efforts to bring augmented reality to the mainstream.

On Sunday, 37-year-old Steve Stephens approached and shot 74-year-old Godwin on a Cleveland street and uploaded a video of the act sometime after it occurred. Stephens also live-streamed a video in which he claimed to have killed multiple other people as well. So far only the one victim, Godwin, has been confirmed.

As of this morning, Stephens was reported dead by the Pennsylvania State Police, who said that Stephens committed suicide after a brief pursuit.