Two of Ali's four children are students at Marjory Stoneman Douglas High School in Parkland, Fla., where a lone gunman massacred 17 people in February.
The 61-year-old was taken to a local hospital where he was pronounced dead, according to a Broward County Sheriff's Office news release.
Image The mass shooting at Marjory Stoneman Douglas high school led to protests over gun laws
Two of Ali's children were in the Parkland high school on Valentine's Day when a former student entered the school with his own legally purchased AR-15 and other weapons and opened fire on the students and teachers, killing 17 people.
They tweeted out photos of him and asked if anyone knows who the suspect is. But authorities allege the man returned to the store and fatally shot Ali. He robbed Ayub Ali, 61, at gunpoint, left the store, then came back and shot him, detectives said.
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Investigators said the man wore a black vest and reddish-orange shorts with black and white stripes on the sides.
Ali lived near the Bangladeshi port city of Chittagong before immigrating to the United States some two decades ago. "He watched it on TV".
Ali's wife, Farhana Ali, has been overcome with grief.
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Hall said she was humiliated during the encounter, and believed that the pharmacist was trying to out her as a transgender woman . She said the pharmacist also refused to give back her prescription note, meaning she couldn't get it filled at another pharmacy.
As the family prepared for Ali's funeral Friday, they kept going back to the same question: Why. "He was very friendly with the customers".
Information about the incident can be reported by phone: 954-321-4231 or 954-493-8477.
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