An Ohio man is claiming that he traveled to heaven and back again during a recent near-death experience. Brian Miller, 41, was hospitalized after suffering a major heart attack. While he was doing well at first, his heart eventually went into a deadly arrhythmia called Ventricular fibrillation, described by the Mayo Clinic as "a ... rhythm problem that occurs when the heart beats with rapid, erratic electrical impulses." It was during this time that Miller said he saw the light at the end of a heavenly tunnel — and was told by his recently-deceased mother-in-law that he needed to return to his body, WJW-TV reported.