CHICAGO (AP) A street-gang expert warns that many children displaced by closing Chicago public schools will be stepping into "the line of fire" between warring gangs as they walk to new classrooms.

John Hagedorn spoke Wednesday during a second day of testimony before a federal judge who's considering a temporary injunction to stop the district from closing about 50 schools.

Hagedorn says Chicago gangs have fallen into disarray over the past decade, making gang violence more unpredictable.

He says it's not a question of whether there will be shooting in neighborhoods kids must walk through. He says shootings are happening now.

He adds school closings already are prompting gang Facebook postings warning students to stay away.

If the closings happen, Hagedorn says, "It is likely a child will be shot and killed."