Judges 20:3

(Now the children of Benjamin heard that the children of Israel were gone up to Mizpeh.) Then said the children of Israel, Tell us, how was this wickedness?

Now the children of Benjamin heard. Some suppose that Benjamin had been passed over, the crime having been perpetrated within the territory of that tribe; and that, as the concubine's corpse had been divided into twelve pieces, two had been sent to Manasseh, one respectively to the Western and Eastern division. It is more probable that Benjamin had received a formal summons, like the other tribes, but chose to treat it with indifference or haughty disdain.