Authorities have begun piecing together the days and hours of the man they say drove the Tesla Cybertruck that exploded on New Year's Day in Las Vegas. Matthew Livelsberger , 37, was identified as the person who rented the Cybertruck days earlier in Colorado and drove it to Las Vegas. Because the remains of the person found dead inside the vehicle after it exploded were badly burned, officials said they could not yet conclude with complete certainty the man was Livelsberger, but had enough evidence to believe he was the driver.

The blast happened Wednesday morning before 9 a.m. in front of the Trump International Hotel in Las Vegas.

Livelsberger is believed to have shot himself in the head immediately before the detonation, Las Vegas Metropolitan Police Department Sheriff Kevin McMahill said at a news conference Thursday. Despite striking similarities , authorities said they don't have any evidence the explosion is connected to the deadly attack in New Orleans hours earlier. Livelsberger's motive remains known.

Here's what we know about Livelsberger's movements with the Cybertruck leading up to the blast, according to authorities: Truck rented days earlier in Colorado Authorities said they tracked the movements of Livelsberger and the Cybertruck using Tesla charging station records and photos from traffic cameras. Dec. 28: Livelsberger rents the Cybertruck in Denver using the peer-to-peer car rental platform Turo.

Dec. 30: The Cybertruck is charged in Monument, Colorado. Also.