Actress Hayden Panettiere, best known for roles in "Heroes" and "Nashville," died suddenly at the age of 36, with her former boyfriend Brian Hickerson reportedly present when she was found unresponsive. According to reports, Hickerson later handed police a bag of medication in the aftermath of her death, adding a further twist to the pair's long and turbulent on-again, off-again relationship. The development has drawn scrutiny given the couple's troubled history and comes as investigators continue to piece together the circumstances surrounding her death.

A preliminary autopsy found no signs of trauma on Panettiere's body, according to a Fox News correspondent's report, though full findings have not yet been released. Panettiere's mother has also publicly pointed to Hickerson in connection with her daughter's death, while tributes have poured in from colleagues including Viola Davis and Bethany Joy Lenz, and her former fiancé Wladimir Klitschko has vowed to preserve her memory for their daughter, Kaya.