The Cleveland Police Department held a press conference Monday morning to give an update on their search for Stephens.
Police reported getting dozens and dozens of tips, and nine schools in Philadelphia were locked down Monday while authorities investigated possible sightings of Stephens. Cleveland State University issued an alert on social media.
"He is considered armed and risky, so we want people to be careful out there", he added.
Investigators don't believe Stephens has killed anyone besides Godwin, however.
A random act of senseless violence stunned the United States April 16: In a video posted to Facebook, a man driving through the Cleveland area sees a pedestrian, stops the auto, announces his intention to kill, walks over to the victim and shoots him. The gruesome murder was posted on Facebook by the alleged killer, 37-year-old Steve Stephens.
Police cautioned the public not to approach Stephens if they see him, and to call 911.
People have used Facebook Live to capture crimes such as rape, torture, child and animal abuse.
"We're going to make this individual's world very, very, very small, so I'm very optimistic", said Peter Elliot, the marshal on the case.
Police arrested two teen boys in Chicago after five or six males raped a 15-year-old girl on Facebook Live on March 19, NPR said.More news: April's giraffe calf height, weight revealed
Godwin apparently was shot while out picking up cans in a plastic shopping bag, his daughter said.
Officers have searched dozens of places around the city and spoke with the suspect by mobile phone, police said.
"We obviously have a video of the incident, so we have verifiable, objective evidence of what occurred to this young lady, but she's just having a very hard time", says the commander.
On day two of the manhunt, Federal Bureau of Investigation agent Stephen Anthony said Stephens, a counsellor for young adults "could be nearby, he could be far away, or anywhere in between". Residents of Pennsylvania, New York, Indiana, and MI should stay alert. He was last known to be driving a white Ford Fusion with temporary tags.
Stephens worked at Beech Brook, a social services agency in suburban Cleveland that deals with vulnerable young people.
Stephens turned to violence because he was angry with his ex-girlfriend Joy Lane, he says in a video posted to Facebook. Stephens purportedly bragged about the murder on Facebook Live, subsequently claiming to have shot several additional victims.
"For example, our systems may detect repeated posting of the same content, or an increase in messages sent", Facebook said in the blog post.
The Facebook murder suspect, Steve Stephens, was not captured overnight, and police fear he could have escaped the immediate area into a surrounding state. We are doing everything we can to help and help locate him.
Police said they have not verified his claim to have committed other murders.