Hayden Panettiere’s on-and-off boyfriend Brian Hickerson and his brother Zach Hickerson were at the South Carolina apartment where the actor died over the weekend. That is according to a police report released Tuesday. A Greenville police officer who responded to the residence Sunday afternoon was met by the brothers and then observed paramedics performing CPR on an unresponsive woman. No cause has been determined, and her death remains under investigation. An autopsy found no signs of trauma, and officers saw no signs of foul play. The onetime child star, who soared to fame in the TV shows “Heroes” and “Nashville” while enduring struggles with addiction, would have turned 37 on Friday.