Tesla plans to begin mass production of its all-electric Class 8 Semi truck by the end of the year at its factory in Nevada.

We're able to trace that truck through the Tesla charging stations ... Authorities suspect that the driver had a background in military service, according to several law enforcement officials ...

Related Tesla ... trucks were rented through Turo. A Turo spokesperson told CNN, "We do not believe that either renter involved in the Las Vegas and New Orleans attacks had a criminal background ...