Updated

A suburban Chicago teen who was questioned by school officials about a sex video he made killed himself just hours after he was called to the dean's office.

Now Corey Walgren's death in January is the subject of a lawsuit filed by his parents. They have sued Naperville North High School, accusing it of traumatizing their son by telling him that footage of him having sex with a classmate could lead to criminal charges and require him to register as a sex offender for life.

The suicide of the honor-roll student also raises a high-stakes legal question because many child pornography laws predate the phenomena of teens sharing sexual images by cellphone. And neither they nor their parents usually have any idea that doing so can trigger serious penalties.