A popular gaming YouTuber known as McSkillet was among three people killed in a head-on crash in California on Thursday, police have confirmed.
Trevor Heitmann, 18, was best known for playing Counter Strike and designing and selling custom content online.
Police say his McLaren sports car was driving at high speed in the wrong direction near San Diego.
The vehicle collided with a Hyundai SUV car with a mother and daughter inside, killing them both.
The pair were later identified as 43-year-old Aileen and Aryana Pizarro, who was 12.
A number of other cars were also involved in the crash, which happened at about 16:30 local time (23:30 GMT).
Witnesses told police the McLaren had been travelling at over 100 mph (160km/h) at the time, and was driving southbound in a northbound lane on the Interstate 805 road.
The sports car was also involved in an earlier incident where it drove into the fence of an elementary school but no one was injured.
The son of victim Aileen Pizarro described his mother and sister to CBS News as the “kindest, most caring people in the world”.
Heitmann was known online as “the King of Skins” for designing and selling custom content, or skins, for the first-person shooter game Counter Strike: Global Offensive.
He had almost 900,000 subscribers on YouTube and hundreds of thousands of followers on Twitter.
Reports say Heitmann was given a trade ban by the game’s owner Valve earlier this year over a crack-down on gambling involving custom content, which froze him out of account and cut his income.
He had not uploaded a video to his channel for five months.
Friends of the YouTuber online said on social media that he had been struggling with his mental health before Thursday’s accident.
Officials say they are investigating the crash.