Driver, 36, accused of 'deliberately plowing his pickup truck into cyclists during Arizona bike race' is charged with murder after 58-year-old man died three weeks after crash

• Shawn Chock, 36, identified as the driver who cops say crashed into group of cyclists taking part in a bike race in Arizona, has been charged with murder 
• Jeremy Barrett, 58, passed away on July 10 after suffering complications during his recovery from his injuries while in hospital
• Chock is accused of deliberately plowing his Ford F-150 pickup truck into the cyclists, leaving six critically injured 
• Court records indicate Chock has a history of DUI arrests 
• In 2010, Chock pleaded guilty to felony aggravated DUI and shoplifting 
• Cyclist Tony Quinones said he was about six minutes into the race when he saw the truck cross over three lanes and head straight for the cyclists  

An Arizona man already facing assault charges for allegedly plowing his pickup truck into people participating in a bike race nearly six weeks ago has been charged with murder.

An indictment made public Wednesday adds a murder charge against Shawn Michael Chock in the death of 58-year-old Jeremy Barrett.

Barrett was one of those injured on June 19 when Chock sped into a crowd gathered for the annual 58-mile Bike the Bluff race in Show Low, a mountain city about three hours northeast of Phoenix, authorities say.

Chock is also charged with aggravated assault of nine other people, leaving the scene of an accident and fleeing from law enforcement. 

He previously pleaded not guilty to some of the charges, though he hasn't yet entered a plea on the murder charge.

Hunter T. Lewis, an attorney representing Chock, declined to comment on the indictment.

After plowing into the crowd, Chock hit a a telephone pole, and backed out of the crowd as cyclists pounded on the truck's windows, screaming for him to get out, witnesses said. He then drove down the road, turned around and headed back toward the cyclists before driving away, witnesses said.

Police shot Chock at a nearby hardware store. He was charged after being released from the hospital and remains jailed on a $500,000 bond.

Barrett's condition had been improving with surgery, and doctors in Flagstaff planned to transport him to Tucson. But a friend has said Barrett suffered a stroke resulting in another setback as he was fighting to survive and died on July 10.

Barrett, who spent parts of his life in Zimbabwe and Australia, was well-known in the cycling community for welcoming new riders and hosting bicyclists who were training in southern Arizona, friends said.

Barrett's girlfriend, Laura Cedergren, revealed that the man had suffered 'massive internal injuries and broken bones.' 

Bertine and another friend described Barrett as kind, knowledgeable and helpful. 

He leaves behind his girlfriend, his elderly mother and two brothers. 

Shawna Glazer, who claimed to have been at the scene of the crash and comforted Barrett before help arrived, wrote in a post that the 58-year-old man was more concerned with the well-being of his fellow riders than with his own condition. 

'What amazes me most about Jeremy is that despite his tremendous injuries and confusion of being hit with a pickup truck, he asked me where his friends were,' she wrote. 

'He wanted to know if they were ok and if they were also hit. In that moment he showed me what it truly meant to be selfless. This man's last thoughts and questions were about the wellbeing of others!' 

Shortly after the crash cycling gear including shoes, helmets and water bottles littered what had become a blood-stained road. Bicycles were shattered to pieces. 

Graphic photos taken by local outlet WMICentral.com showed the black truck with bullet holes in the driver's side window and part of a mangled bike stuck on the vehicle's grill.  

Tony Quinones, a cyclist who saw the crash, said some riders wondered at first whether the driver had fallen asleep at the wheel. But Quinones said he saw the man deliberately accelerate toward the cyclists.

'He went right at us,' Quinones said.

Quinones told the New York Times he was riding in the race with other male cyclists aged 55 and over when he spotted the pickup truck driving in the opposite direction in the opposite lane.  

The witness said he believed the incident was a targeted attack. 

'I don't know who the heck this guy is, or what his motive was,' he said. 

'But he intentionally did not go left into a parking lot. 

'He drove his truck directly and intentionally into our group, and you could hear him accelerate until he hit that telephone pole.' 

Another witness said he saw the incident unfold within the first mile and a half of the men's race. 

Mike Godwin, who owns the Cycle Mania bike shop in Show Low with his wife Carol, said cars were allowed to share the road with cyclists in the race.  

Bike the Bluff is a 58-mile race to raise money for the Mountain Christian School in Show Low, a town in the White Mountains located about a three-hour drive from Phoenix.

It was the 13th annual event and had attracted 270 participants.  

Online court records in Maricopa County indicate that a Shawn Michael Chock, 35, has a history of arrests for driving under the influence of drugs or alcohol and assault. 

In 2007, he was indicted on aggravated assault. Several months later, he was charged with disorderly conduct with a weapon and pleaded guilty to a reduced charge.

In 2010, three DUI-related charges, including having a third DUI, were dropped as part of an agreement where Chock pleaded guilty to felony aggravated DUI and shoplifting. He also pleaded no contest to aggravated assault.

Records show Chock was given probation in 2012 but violated the conditions of it in May 2013. According to court paperwork, Chock rejected a chance at continuing probation and requested prison time. 

He was sentenced to two years and eight months but got more than 280 days credit for time served before sentencing. Online Arizona Department of Corrections records indicate he went to prison in May 2013 but was paroled in October 2014.