Can’t get him out of my house

My boyfriend refuses to leave my home. I have told him I no longer want to be with him and he still refuses to leave. I made this decision once it became physical. He told me if I call the police the moment they arrive he’s killing everyone including the kids. I don’t know what to do. He says he has nothing to lose.

Update:

He’s gone ladies...called one of his childhood friends and explain everything and he was on top of it and got him out.

Thank you all for your support, help and concern. I really appreciate it.