The driver, 28-year-old Alex Mark Demetro of Union City, was arrested on suspicion of vehicular manslaughter and felony driving under the influence of drugs, said Sgt. Jeff Higbee of the Ontario Police Department. Officials told the Riverside Press-Enterprise that Demetro was impaired by prescription drugs. ||||| Please enable Javascript to watch this video 
 
 A used car salesman was killed when a red Corvette crashed during a test drive in Ontario, and the prospective car buyer was arrested on suspicion of vehicular manslaughter Tuesday afternoon, police said. 
 
 A fatal crash occurred about 12:45 p.m. near the CarMax at 4100 Inland Empire Blvd., Sgt. Jeff Higbee of the Ontario Police Department confirmed to KTLA. 
 
 A 28-year-old from Union City, Alex Demetro, was driving the vehicle when the car struck a tree, killing the 43-year-old male passenger, the salesman, Higbee said. 
 
 Witnesses said the Chevrolet Corvette was being driven at a high rate of speed, and the driver lost control before crashing into a tree, a police news release stated. 
 
 Several people who witnessed the crash -- on Mercedes Lane south of Councours Street, a couple blocks from the CarMax -- told KTLA the Corvette was going at least 70 mph. 
 
 Demetro was arrested on suspicion of vehicular manslaughter and felony driving under the influence of drugs. Police did not say if he was injured. 
 
 The suspect was not believed to have been under the influence of alcohol, but investigators were looking at whether drugs were a contributing factor, Higbee said. 
 
 The victim, identified by co-workers as 43-year-old Warren Smale, was transported in critical condition to San Antonio Regional Hospital, where he died. 
 
 "It's a part of our job, the test drives," co-worker Lydia Garrett said. "I know Warren ... he probably had no clue, I'm sure." 
 
 A number of co-workers gathered at the crash site Tuesday night, where they remembered Smale as fun-loving and full of life. 
 
 "He was the guy at work that it didn't matter what kind of day you were having, he was there for you," Garrett said. "He would make you laugh. He would make you smile." 
 
 Kerissa Schartner heard the crash and went outside, where she saw Smale still in the passenger seat and Demetro sitting on the ground holding his shoulder. 
 
 "I think he was probably shocked," Kerissa Schartner said. 
 
 Cellphone video from a witness showed the victim being removed from the car. 
 
 Broken glass and debris was left at the scene Tuesday evening, and the tree that the Corvette struck had deep gouges in its bark. 
 
 "It kind of made me realize life is very fragile," said witness Paul Romo. "That guy had no idea today would be his last day when he showed up to work today." 
 
 CarMax spokeswoman Catherine Gryp issued a statement calling the loss "an incredibly sad day for the CarMax family." 
 
 "Our hearts and prayers go out to our associate's family. CarMax is working closely with the authorities on the investigation," the statement read. 
 
 KTLA's Scott Williams contributed to this article. 
 
 Correction: The name of a witness was misspelled in an earlier version of this story. It has been corrected. 
 
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– It was just another test drive—a regular task in the daily routine of a used-car salesman. But for CarMax's Warren Smale, it turned out to be his last ride after a potential buyer crashed the red Corvette they were driving in Tuesday into a tree, killing the 43-year-old salesman in Ontario, Calif., and ending in the driver's arrest, the Los Angeles Times reports. Alex Demetro, 28, was charged with vehicular manslaughter and driving under the influence of drugs after witnesses say he lost control of the car, the Ontario Police Department tells KTLA. The Corvette was seen zipping around at speeds up to 70mph, witnesses say in a police report. "Today is an incredibly sad day for the CarMax family," a company statement read. "Our hearts and prayers go out to our associate's family." One witness tells KTLA that when she heard the accident, which took place around 12:45pm just a couple of blocks away from the CarMax lot, she headed outside and saw Smale still in the passenger seat and Demetro on the ground clutching his shoulder. "I think he was probably shocked," she says. Smale was taken to a local hospital in critical condition and died there. "That guy had no idea today would be his last day when he showed up to work today," another witness told KTLA. Demetro is being detained in a San Bernardino County jail on $100,000 bail and is expected to appear in court on Thursday, per court records. (A Houston car salesman was kidnapped during a test drive.)