An attorney for Hayden Panettiere‘s on-again, off-again boyfriend Brian Hickerson is speaking out in the wake of her death.

Days after the Heroes alum died on Aug. 16 at age 36, a lawyer for Brian—who police said was at the South Carolina apartment complex where Panettiere was found unresponsive—addressed the details surrounding her passing.

“Hayden’s death remains under investigation and it is important to allow that investigation to proceed,” his attorney Sloan Ellis told TMZ in a statement Aug. 20. “As has been publicly reported, police confirmed there were no signs of foul play. Out of respect for Hayden’s loved ones and the ongoing investigation, there will be no further comment at this time.”

In a Greenville Police Department report obtained E! News, authorities said Brian and his brother Zach Hickerson were on scene as authorities responded to Panettiere experiencing cardiac arrest. The siblings confirmed to police that they were the ones who called 911, while Zach referred to Panettiere as “his brother’s girlfriend.”

Though Zach was “very emotional” as EMS workers performed administered CPR on Panettiere, the report stated that Brian “did not become emotional” until the Nashville star was pronounced dead just after 2:30 p.m.