Cobb County police on Tuesday, Oct. 13, named the man killed on the Goliath roller coaster at Six Flags Over Georgia. He was Hassan Jihad Ibn Kariem, 42, of Atlanta, WSB-TV and the BBC reported. CBS News Atlanta said he worked as an IT manager at Wesley International Academy, an Atlanta charter school.

"Preliminary information gathered through witness and employee interview indicates Kariem was ejected from the ride and struck other patrons before falling beneath the attraction," police said, according to the BBC. It happened just before 4 p.m. on Monday. Officers found him beneath the ride, unresponsive and not breathing, the BBC and The Wall Street Journal reported. Officials told WSB-TV that four other people were hurt. Workers brought riders down from the train four at a time.

Georgia's Office of the Commissioner of Insurance and Safety Fire said Tuesday it is investigating. It said it could not share more while the review is open. No cause has been announced.

Six Flags said it temporarily closed nine similar coasters at six parks in the U.S. and Canada as a precaution, CBS News Atlanta reported. The Georgia park was already set to be closed Tuesday and will reopen Friday, according to WSB-TV.

Witnesses gave local news crews mixed accounts. A couple on the ride told WXIA that workers had checked their harnesses before it left, the BBC reported. Another witness said she saw an empty seat with a loose safety bar, the BBC reported.

It was the eighth death at the park since 1989, CBS News Atlanta reported, citing the Doan Law Firm. Goliath opened in 2006. It climbs 200 feet and reaches up to 70 mph, according to the park website cited by the BBC. Coasters are not federally regulated, so states set the rules, a University of Florida expert told the BBC.

What we know: Police say Kariem was ejected from Goliath, four others were hurt, and the state is investigating.
What we don't: Why he was ejected, whether the restraint failed, and when the closed coasters will reopen.