The Cleveland police were searching Sunday for a man who they said killed a person live on Facebook and bragged about having committed many other homicides.

The suspect, identified as Steve Stephens, is considered armed and dangerous, police said after the homicide in northeast Cleveland near the Lake Erie shore. The FBI was providing assistance, a spokeswoman told NBC News.

#BREAKING: Police are looking for this man, accused of broadcasting the fatal shooting of a man on Facebook Live. https://t.co/qtcR18pV2P pic.twitter.com/QM29RYsfAm

— News 5 Cleveland (@WEWS) April 16, 2017

A series of posts Sunday on what authorities said was Stephens’ Facebook page complained that he had “lost everything” to gambling. The posts named specific people whom the user wanted to talk to, and at one point he wrote “I killed 12 people today” and wouldn’t stop until he could speak to his mother and a second woman.

https://twitter.com/reid_report/status/853706248000348160

Later, the user posted: “I killed 15 today because of [the second woman].” The user called it his “Easter day slaughter.”

https://twitter.com/draefend/status/853722541080412161

https://twitter.com/Imn0taaron/status/853703810040156161

https://twitter.com/drphilDONTEhue/status/853709322563584000

This is Steven Stephens. He's in #Cleveland shooting folks at random. PLEASE STAY SAFE! pic.twitter.com/hfmXigJNxN

— ʜᴀᴄᴋᴀʀʏ ʙɪɴx (@BarkyBoogz) April 16, 2017