Nearly a month after the beloved Twin Peaks director died at the age of 78, a death certificate from the Los Angeles County Department of Public Health reveals that Lynch died from cardiac arrest due to chronic obstructive pulmonary disease, per The Independent and TMZ, which was the first to report the news.

David Lynch's cause of death has been confirmed almost a month after his death certificate was released on Friday. The Twin Peaks director died on January 15

Visionary director died from cardiac arrest due to chronic obstructive pulmonary disease, Los Angeles County Department of Public Health says

We've learned David Lynch's cause of death ... his death certificate was released Friday. In the L.A. County Dept. of Public Health document, David's immediate cause of death is listed as cardiac arrest