Two Southern California teenagers are charged with plotting a mass shooting at South Pasadena High School.  

The step-father of the 17-year-old suspect made a statement after his step-son appeared in juvenile court on Wednesday.

"My wife and I would like to apologize to the whole community, every student, every parent, every faculty, that we do not condone any kind of behavior," he said. 

The 16- and 17-year-olds are each charged with one count of making criminal threats.  

Police say they arrested the two on Monday after investigating information that the boys told another teen about their plans, and threatened to kill him.  

South Pasadena's police chief says the boys researched weapons, explosives and ways to disarm people.  

He says they "very cold-heartedly" discussed online their plans to kill as many people as possible.