After a lighthearted introduction in which the CEO of Facebook compared its F8 developer conference to the latest film in "The Fast and the Furious" franchise (which is also referred to as "F8"), Zuckerberg turned solemn.
Acting on a tip, Pennsylvania State Police spotted Steve Stephens, 37, leaving a McDonald's in Erie and went after him, bumping his auto to try to get it to stop, authorities said. Stephens soon took off without them. The city of Erie became an area of high interest in the multi-state manhunt as law enforcement referred at one point to a "pinged" cell tower early in the investigation before Stephens shut off his phone.
Pennsylvania Gov. Tom Wolf commended police for the pursuit and said no one else in the state was hurt.
Authorities say Stephens approached 74-year-old Robert Godwin as he walked home from Easter lunch on Sunday afternoon.
Facebook said Stephens' account was suspended within 23 minutes of the murder video being reported, but admitted it needs to "do better".
Where Might Steve Stephens Be Now?
An expanded version of this report appears on WSJ.com. They're warning residents in the nearby states of Michigan, Indiana, Pennsylvania and NY to be on alert.
Trump advisers to meet Tuesday to discuss Paris climate agreement
Kushner is one of the main proponents of the pact, along with Tillerson, the former CEO of Exxon Mobil Corp. Trump may also choose to stay in the agreement and reduce the emissions commitment.
In a blog post, Facebook's vice president of global operations, Justin Osofsky, said "we know we need to do better" regarding the efficiency of taking down and disabling risky content. He added, "He could be far away, or anywhere in between".
The case sparked interest around the world and a $50,000 reward was offered for information leading to the arrest and conviction of the suspect.
Meanwhile, Godwin Sr. was likely a victim selected randomly. He was picking up aluminum cans on the side of the road when Stephens allegedly drove up and shot him. In the video, Stephens told Godwin the name of his girlfriend and said, "She's the reason that this is about to happen to you".
The woman believed to be associated with the suspect has told multiple news agencies that she was "overwhelmed" by the tragedy. She heard the gunshots and looked outside to see what was going on. "Steve really is a nice guy... he is generous with everyone he knows. Please respect our privacy at this time". While Lane acknowledged that she and Stephen had been together for several years, the other details of their relationship were not clear.
A multistate manhunt for the suspect in a random killing that Cleveland police say he recorded and posted to Facebook is entering its third day.
The video of the killing remained on Facebook for almost three hours.