Trending all over social media is the heartbreaking news about Gwen Casten’s daughter. The congressman’s 17-year-old daughter died in the early hours of  Monday (June 13), according to the congressman’s office.

Gwen Casten cause of death: What happened to Rep. Sean Casten daughter?

(The Casten family requests privacy, and we will make no further comment during this heartbreaking time,) the official Twitter account of the Illinois Democrat said.

The congressman’s office did not provide any additional information. At the moment the politician’s daughter’s death remains a mystery, however, in due time when her autopsy report is revealed more light would be thrown on what exactly killed her.

From rumors, the Chicago Tribune reported that police were called to the residence of Casten shortly before 7 in the morning for an unconscious teenage girl.

In a redrawn legislative district, Gwen Casten, who is seeking a third term, will face a Democratic primary against fellow incumbent Rep. Marie Newman.