Actress Hayden Panettiere's ex-boyfriend, Brian Hickerson, was present at the scene when she died on Sunday, according to a police report obtained by ABC News.

Panettiere, who gained fame for her roles in "Heroes," "Nashville," and "Remember the Titans," was 36 years old.

Details surrounding the circumstances of Panettiere's death are still emerging. The police report confirms Hickerson's presence at the location at the time of her passing, but further information regarding his specific involvement or the cause of death has not been publicly released.

The revelation of Hickerson's presence at the scene adds a layer of complexity to the ongoing investigation into Panettiere's death. His relationship with the actress was reportedly tumultuous, with previous public incidents.

Hickerson had a history of legal issues, including arrests related to domestic violence allegations involving Panettiere in the past. These prior incidents have drawn attention in light of his presence at the scene of her death.

Panettiere's career spanned over two decades, beginning in childhood with roles on "Guiding Light" and later achieving widespread recognition for her part in the science fiction drama "Heroes" and the country music series "Nashville." Her portrayal of a cheerleader in the Disney Channel movie "Bring It On: All or Nothing" also resonated with audiences.

Fans and colleagues have begun to share tributes to Panettiere, remembering her talent and contributions to television and film. The news of her death has sent shockwaves through Hollywood and among her dedicated fanbase.

This is a developing story, and ABC News will continue to provide updates as more information becomes available from official sources regarding the investigation and the cause of Hayden Panettiere's death.