Nine schools in the Philadelphia area have been put on lockdown as police respond to unconfirmed sightings of the man who allegedly killed a Cleveland grandfather and posted a video of the shooting on Facebook.

Philadelphia cops said Monday that they’d received “multiple 911 calls” from people saying accused killer Steve Stephens, 37, might be near Belmont Plateau in West Fairmount Park, according to Philly.com.

As they searched the area, eight elementary schools and one high school were put on lockdown.

“So far there is no indication that the subject is in the plateau,” police said.