They were up on the hillside, standing in a circle, working their way through some kind of ritual that involved torches and large knives.
Through April 1 of the current school year, the police had already investigated 24 assaults, 11 of them involving knives or box cutters.
Some of their S&M games involve knives, biting and mutual strangulation.
I mentioned the sentence of life imprisonment and the unlimited fines that are available for crimes involving knives.
These wouldn't be massacres if they involved just knives or baseball bats.
Some cutting involves knives of some sort attached to the tail, line, or kite.
There was one incident of sexual harassment and 2 police reports were made involving knives.
More than half of almost 100 recent murders in Strathclyde have involved knives.
Over the years, Anthony and his mother had several violent arguments involving knives.
"In San Bernardino they've had confrontations that involved knives and guns," he said.