Did Minnesota Teen Kill Himself?

The medical examiner investigating the death of 18-year-old Lance Lundsten says he won't know if the Minnesota high schooler took his own life until after autopsy results and laboratory testing are complete.

Monday night, KSAX TV reported the Jefferson High School senior took his own life Saturday after being bullied at school. Friends of Lundsten's wrote on a Facebook memorial page they believe he had been bullied at school for being gay, which may have led him to kill himself.

But a report quickly followed that Lance's father had spoken to the coroner, who said Lance had an enlarged heart and died of coronary edema.

Tuesday, Douglas County medical examiner Mark Spanbauer confirmed that the teen's heart was slightly enlarged, but said that was a secondary finding, and the primary cause of death remained undetermined. He said it could take weeks to determine the primary cause.

Shortly after Lundsten's death, U.S. senator Al Franken of Minnesota spoke out against antigay bullying and recommitted to legislation he's sponsored that would call for antibullying measures in public schools.