Did Chad Daybell have something to do with Kiplyn Davis' disappearance?

Back in April of 2020, according to ABC 4 Utah, the Utah Cold Case Coalition began focusing on the Kiplyn Davis case. With ground penetrating radar they started searching a Springville cemetery where Chad Daybell had worked as a gravedigger. Kiplyn's family allegedly knew Chad and it is possible that he could have aided with the concealment of her body.

Kiplyn Davis 

She was born on July 1, 1979 to Richard and Tamara Davis.

Kiplyn was a sophomore at Spanish Fork High School in Spanish Fork, Utah. 
She was last seen on in the morning on May 2, 1995.
It was raining hard that day.
She had a fight with both of her parents then attended her early driver's education class, her morning classes and was seen at lunchtime in the school's cafeteria with her friends and classmates.
She did not show up for her fourth and fifth period classes.
Her purse, makeup, dental retainer and schoolbooks, were left in her locker at school.
She was reported missing when she failed to arrive home at 5:00 p.m.
After months passed police began to suspect foul play in her disappearance. 
Her family believes she was murdered. 
Four years after her disappearance, her family held a memorial service for Davis and put up a marker in her name at the Spanish Fork City Cemetery.
In 2003, Timmy Brent Olsen and Christopher Neal Jeppson had been charged with her murder.
On May 6, the murder charges against Christopher Neal Jeppson were dropped.
In court he pled no contest to obstruction related charges and ultimately signed an affidavit that he does not know the circumstances or cause of Kiplyn Davis's disappearance.
Rucker Leifson pleaded guilty to one count of lying to a grand jury and was sentenced to four years in prison. 
Gary Blackmore and Scott Brunson have also been found guilty of lying to a grand jury, their sentences hinge upon their testimony against Olsen.
On June 1, 2009, a motion to dismiss the murder charge against Olsen was announced. 
The judge decided to defer any ruling on the motion in the case, stating he had not heard all the evidence from the prosecutors. 
An evidentiary hearing to establish whether there is evidence of death is still possible.
On February 11, 2011, Timmy Brent Olson pleaded guilty to manslaughter and was sentenced to 15 years in prison.
He claimed he saw another individual hit Davis twice in the head with a soft-ball sized rock and helped him move her body.
He declined to name the other individual and admitted that he helped move and bury the body.
He also refused to tell authorities where the body was located.
Olson and Leifson had come under suspicion after claiming they left school with Davis on the day she disappeared.
Olsen and another individual met up on May 2, 1995, and drove up Spanish Fork Canyon with Kiplyn. 
At some point, she and the other person went out of sight. 
After about 30 to 45 minutes, Olsen went to look for them because he heard an argument.
Olsen reached the area where the two were, he saw the other person strike her on the right side of the head with the rock. 
Kiplyn fell, and he then saw the other person strike her a second time, on the right side of the head.
Olsen approached the other person and asked what they were doing. 
That person asked him to help move the body. 
At that point, Kiplyn was unconscious and Olsen said he didn't know whether she was dead.
Olsen helped move her underneath a line of trees, then returned to the vehicle with the second person and left the area. 
The two returned later that evening and moved Kiplyn's body to the other person's vehicle. 
At that time, it was apparent she was dead.
Kiplyn's father said he believes he knows who it was that killed his daughter.
Olsen was accused of making statements to police that placed David Rucker Leifson at the scene of the crime. 
Olsen allegedly also bragged to people in the past that he and Leifson took Kiplyn from school and drove her up the canyon that day.
Leifson threatened to kill Olsen if he kept mentioning him in connection with Kiplyn's disappearance.
Richard Davis thanked Olsen for his plea, saying he forgives him.
He also begged Olsen to tell authorities where his daughter's body is located.
"It's like she's suffering, like she's still cold,"
Her parents leave the porch light on every night for her.