California authorities have released distressing footage that shows a YouTube engineer's drug-fueled rampage that left eight people injured earlier this month.

The Sonoma County Sheriff's Office also released audio of 911 calls from friends of Betai Koffi, 32, who expressed their concern for him.

'We're really worried about him honestly,' a friend is heard telling dispatch. 'We're really worried that he's going to like jump off something, kill himself,' the friend adds, moments after telling dispatch that Koffi had taken drugs.

The video then cuts to a map of the Bodega Bay area where Koffi is accused of going on a rampage after consuming at least four tablets of LSD on the Fourth of July.

In the recently released video, Betai Koffi (left), 32, is seen wandering around a private property as a security guard (right, circled) followed him and called for backup. Moments later, Koffi is seen pulling a garden stake light from the ground before using it to stab the guard

Police said Koffi then stole the guard's truck. The video shows a couple (right) walking down the side of the road when the truck (center) hits a woman at a high speed. The graphic footage shows the moment she is thrown into a ditch after being struck by the vehicle

The truck is then seen barreling toward another couple, striking another woman a short distance away (as depicted by this graphic). Neither women suffered life-threatening injuries

Koffi was with five of his friends who had rented a Bodega Bay home for the holiday weekend when the sheriff's office received a 911 call around 8pm on July 4.

Authorities said Koffi consumed two doses of LSD or acid, which is a known dangerous hallucinogenic drug around 12pm that day.

By 3pm he had become 'delusional' and his friends tried to keep him calm.

Between 4pm and 5pm, Koffi allegedly consumed two more doses of LSD and a few hours later he tried to leave the home in the 600 block of Swan Drive shortly before 8pm.

While attempting to leave, Koffi punched a woman in the chest and side, then stabbed a man with a pencil, choked another man, and punched another man in the face, police said.

He was able to get into his rental car and proceeded to leave the home, ramming into another car that was parked behind him.

'Koffi put the car in drive and drove towards one of the men, who was able to get out of the way, then drove the car into the garage of the home, lodging it into the home,' authorities said.

He then reportedly exited the vehicle and ran down the street until he was confronted by a security guard.

He then drove to the 21000 block of Pelican Loop, the area where police confronted him. The video shows the truck (facing the officers) coming straight for the deputies who then fired off several rounds

Koffi was hit at least three times through the windshield police said. An officer is later seen dragging Koffi out of the truck and onto the ground

The officers work to handcuff a bleeding Koffi before administering medical assistance

In the recently released video, Koffi is seen wandering around a private property barefoot as the security guard followed him and called for backup.

Moments later, Koffi is seen pulling a garden stake light from the ground before using it to stab the guard.

The guard is seen crashing to the ground after being stabbed in the chest.

'Help, code 30! Officer down! He's taking off in our patrol vehicle,' the security guard manages to say as Koffi allegedly jumped into his truck.

The video then shows a couple walking down the side of the road when the truck hits a woman at a high speed.

The graphic footage shows the moment she is thrown into a ditch after being struck by the vehicle.

Police said the man was not injured and the woman suffered non-life threatening injuries.

Moments later, the truck is then seen barreling toward another couple, striking another woman a short distance away.

She also did not suffer life threatening injuries.

Koffi (pictured) was charged with two counts of attempted murder, three counts of assault with a deadly weapon and one charge of carjacking for the incidents leading up to the officer involved shooting. His bail has been set at $2.3million

Koffi (left and right) received both his master's and bachelor's in mechanical engineering from Stanford University

According to Koffi's LinkedIn page, he has been working for YouTube (file image) since November 2018

After hitting the pedestrians, police said Koffi momentarily lost control, hit a wall and drove through a yard before returning to a road.

He then drove to the 21000 block of Pelican Loop, the area where police confronted him.

The video shows the truck coming straight for the officers who then fired off several rounds.

Police said Koffi continued to drive forward before colliding into another officer's car. Authorities are heard firing a few more rounds that struck Koffi.

He was hit at least three times through the windshield, police said.

The video shows an officer dragging a bleeding Koffi out of the vehicle and onto the cement as they proceed to handcuff him before administering medical assistance.

Koffi is heard telling the officers: 'Please kill me. Please.'

He was then flown to a nearby hospital where he was in critical condition. Koffi is still at the hospital where he is being guarded by a sheriff's deputy.

Koffi was charged with two counts of attempted murder, three counts of assault with a deadly weapon and one charge of carjacking for the incidents leading up to the officer involved shooting.

His bail has been set at $2.3million.

According to Koffi's LinkedIn page, he has been working for YouTube since November 2018.

He received both his master's and bachelor's in mechanical engineering from Stanford University.