Henry – who starred on the film as a toddler alongside the likes of Bill Murray and Dan Aykroyd – is said to have committed suicide in Escondido, California, on June 14, TMZ have reported.
Henry died after a long battle with schizoaffective disorder; which is a combination of bipolar disorder and schizophrenia and can cause hallucinations and depression.
The star – who was joined by his twin William in the Ghostbusters movie – is said to have been found by his brother in his apartment.
He had recently appeared as himself in the 2017 documentary Cleanin’ Up the Town: Remembering Ghostbusters.
William took to Facebook yesterday to post a heartbreaking tribute, with him sharing: “It is with great sadness that I announce the passing of my twin brother, Hank. On Wednesday, June 14th, 2017, Henry John Deutschendorf II lost his battle with schizoaffective disorder.
“Many people do not know much about Hank. Some knew him as Baby Oscar in Ghostbusters 2 or John Denver’s nephew. Others knew him as a brother, son, martial artist, teacher, uncle, or friend. What people do not know about Hank was that he suffered from schizoaffective disorder.
“It is a chronic mental health condition which is a combination of bipolar disorder and schizophrenia. He experienced hallucinations, delusions, depression, and mania.”
William went on: “It is a very severe mental illness that usually requires a lifetime of treatment. It is not well studied, so the treatment is largely an estimation based on schizophrenia and bipolar treatments.
“Hank fought for his life every day. Since his diagnosis, he tried everything to alleviate the symptoms. In his daily life, he used supplements, meditation, strict dietary plans, and exercise regiments. His daily disciplines weren’t enough to allow him to live the life he wanted to live.
“Other things he tried, to no avail, were homeopathic medicine, herbs, water fasting, acupuncture, aromatherapy, chakra cleansing, affirmations, magic bath salts, CBD,…