The daughter of Democrat State Representative Sean Casten of Illinois, who was 17 years old, passed away suddenly from cardiac arrhythmia on June 13.

The lawmaker has finally broken his silence after keeping quiet for the past four months since the passing of his daughter. 

In a statement, the Casten family revealed that their daughter Gwen, who was healthy and fully vaccinated, passed away as a result of a sudden cardiac arrhythmia.

​​​​​​​​​​​​​​​​​Heart arrhythmia also referred to as cardiac arrhythmia, is an abnormal rhythm of the heart. According to Marshfield Clinic, it occurs when the electrical impulses that coordinate your heart rhythm do not travel normally. This causes the heart to beat too fast, too slow, or with an irregular rhythm.

Gwen died two weeks before her father won the Democratic primary in Illinois’ 6th congressional district, according to CBS.