Tito Jackson, who died at 70 years old on Sunday 15 September, suffered a medical emergency at a New Mexico shopping centre earlier that evening.
The news comes courtesy of a Police Department press release obtained by People magazine.
At around 6.15pm, a Gallup New Mexico Police Department officer was notified that there was "an individual requiring medical attention and promptly requested an ambulance" near the American Heritage Plaza on US Highway 491 in Gallup.
The individual was then transported to a local hospital, where he was pronounced dead. He was identified as Toriano 'Tito' Jackson from Tulsa, Oklahoma.
Before his death, Jackson had been touring with brothers Jackie and Marlon as The Jacksons. They performed on 8 September at the Boogietown Festival in Walton-on-Thames in Surrey, and had US gigs planned for Atlantic City and Cincinnati over the next few weeks.
Boogietown organisers posted, "We are incredibly saddened to hear about the passing of Toriano Adaryll (Tito) Jackson, and send our love and condolences to his family at this difficult time. Thank you for the many years of music and inspiration."
A cause of death was not listed in the police report. The preliminary investigation into Jackson's death is ongoing. Entertainment Tonight was the first to report the news of Jackson's death.
