Is someone with schizophrenia dangerous?

Yes and no.

Most people who commit violent acts are NOT schizophrenic.

Schizophrenics have a modestly elevated risk of violence, but much less than is popularly believed.

substance abuse is a much greater risk factor for violence, so if present should be treated aggressively.

Relative violence risk:

- substance abuse + schizophrenia > substance abuse >> schizophrenia > general population.

Reducing general risk factors for violence, especially access to firearms, is always a prudent first step for any family.