Nicholas Brendon’s official cause of death has been revealed nearly two months after the Buffy the Vampire Slayer actor was found dead at an Indiana residence.Keep reading to learn more.According to a report from the Putnam County Coroner obtained by TMZ, Brendon died from complications related to atherosclerotic and hypertensive cardiovascular disease after being discovered unresponsive on March 20 inside a home in Putnam County, Indiana.The death has now officially been ruled as natural.Per the coroner’s findings, the actor suffered from severe plaque buildup in his arteries, including a reported 90% blockage of his right coronary artery. The condition, known as atherosclerotic cardiovascular disease, occurs when arteries narrow and harden due to fatty deposits restricting blood flow.

Page Six was first to report details surrounding the official cause of death.Additional contributing factors listed in the report included acute pneumonia and a previous heart attack that Brendon had reportedly suffered years earlier.According to the coroner’s report, a friend who had been helping care for Brendon as his health declined told investigators the actor had experienced a heart attack “several years ago” but declined further medical treatment afterward.The same friend reportedly last saw Brendon around 5 a.m. the morning he died and recalled hearing him coughing heavily before later finding him unresponsive around 8 a.m.Authorities were immediately contacted. The report also stated that Brendon had recently complained about chest pain but refused to visit a hospital, instead choosing to self-medicate using over-the-counter medications.