ORLANDO, Fla. — A young boy fighting for his life after a crash on State Road 429 killed three of his family members Tuesday night has died, according to Florida Highway Patrol. 

The 11-year-old boy Jackson Smith was in critical condition at the Arnold Palmer Hospital for Children, where he died Wednesday.

Relatives of the boy, mother Julie Smith, 41, maternal grandmother Josephine Fay, 76, and sister 5-year-old Scarlett Smith, were pronounced dead at the scene of a crash at State Road 429 at Sinclair Road (Exit 1A southbound) around 5:30 p.m. during rush hour traffic. 

Other relatives of the boy received minor injuries in the crash: the 5-year-old girl's twin sister, a 10-year-old girl, father and maternal grandfather, according to the Florida Highway Patrol.

The older family members are from South Weymouth, Mass., while the rest of the family is from Whitman, Mass.

According to Florida Highway Patrol, a white 2016 Dodge pickup truck reportedly did not slow down and read-ended a 2020 Toyota van that had the family of eight from Massachusetts.

The crash caused the van to overturn onto its side.

A 2014 four-door Chrysler and a 2018 four-door Nissan were also hit in the incident, however, the only people injured in the crash were the Massachusetts family in the van, who were all wearing their seatbelts, stated FHP's Lt. Kim Montes.

"I think everyone just is in shock based on the whole situation. And anytime kids are involved — the troopers called me and told me about it were very upset because kids were involved," Montes said.

Authorities say the other drivers stayed at the scene for questioning. Charges are pending for the pickup truck's driver, a 26-year-old Kissimmee resident, who caused the wreck, stated the FHP.

FHP says that he was not under the influence of alcohol. The driver gave a voluntary blood draw, although authorities do not suspect he was impaired. The results will not come in for another eight to 10 weeks, according to officials.

The FHP added that he was wearing a seatbelt.