Toel was initially charged with vehicular homicide -- driving while intoxicated, a Class B felony that carries a 25-year prison sentence, but that charge was amended to vehicular homicide -- recklessness, a Class C felony with a 10-year prison sentence. Toel will receive an additional one year in prison for his OWI conviction.
Sentencing was set for Feb. 17.
Toel told District Judge Steven Andreasen that he and his cousin Ryan Toel both had been drinking before the July 1 crash in the 7200 block of Old Lakeport Road.
"I exceeded the speed limit under the influence of alcohol and wrecked," Toel said.
Authorities estimated Toel was driving approximately 90 mph when he lost control of his Saturn Ion, left the road, partially rolled and struck a tree at about 7:50 p.m. Ryan Toel, 37, of Struble, Iowa, was seriously injured and died two days later. Darrick Toel had minor injuries.
Officers responding to the crash found several cans of Bud Light, some of them open, inside and outside the car at the scene. A blood test taken about an hour after the crash showed Darrick Toel's blood-alcohol content was 0.111 percent, above Iowa's legal driving limit of 0.08 percent, court documents said.
According to court documents, Toel told investigators he and his cousin had been drinking since about 4:30 p.m. and were on their way to Sergeant Bluff when Darrick Toel passed a car, saw an oncoming vehicle and veered to the right, causing him to skid off the road.
While driving at least 80 mph on Old Lakeport Road, Darrick Toel said, according to authorities, he passed a car, saw an oncoming vehicle and veered to the right, skidding off the road and striking the tree.
According to court documents, the 37-year-old man had alcohol and marijuana in his system at the time he struck the bicyclist at the intersection of Wesley Parkway and Kansas Street. He later told police he was texting at the time of the collision.
In his order, the judge said that if Tayvon Davis were to post bond, he would be subject to pretrial supervision and be required to wear an electronic monitor to track his location and whether he used alcohol.
According to terms of a plea agreement, prosecuting and defense attorneys will recommend Joel Perea Duenas be sentenced to 10 days in jail and 12 months on probation. He also would pay a $500 fine and complete 30 hours of community service.
The couple four surviving children received non-life threatening injuries. Authorities said none of the children were restrained in car seats or wearing seat belts, and both adults admitted to drinking the day of the crash.
In a statement read to the court, Ryan Toel's parents said they do not blame Darrick Toel, Ryan's cousin, for their son's death. "This is an accident that could have gone either way. We will forever be family and always be there for you," they said.