Man who sought revenge for a stolen phone pleads guilty to fire that killed a Senegalese family of 5

FILE - Investigators stand outside a house where five immigrants from Senegal were found dead after a fire in suburban Denver on Aug. 5, 2020. Kevin Bui pleaded guilty Friday, May 17, 2024, to a house fire that killed five members of the Senegalese family in 2020 in a case of misplaced revenge caused by mistakenly tracking his stolen iPhone to the home. (AP Photo/Thomas Peipert, File)

DENVER (AP) — A Colorado man pleaded guilty to murder charges on Friday for starting a 2020 house fire that killed five members of a Senegalese family out of misplaced revenge for a stolen iPhone that he mistakenly tracked to the house.

Kevin Bui, now 20, was a teenager at the time of the fire but prosecuted as an adult. He has been portrayed by prosecutors as the ringleader of three friends who started the Aug. 5, 2020, fire in the middle of the night in a Denver neighborhood. Bui wrongly believed people who had recently robbed him lived in the home after using an app to track his stolen iPhone to the general area, according to prior testimony in the case.

This booking image provided by the Denver District Attorney shows Kevin Bui. who pleaded guilty Friday, May 17, 2024, to a house fire that killed five members of a Senegalese family in 2020 in a case of misplaced revenge caused by mistakenly tracking his stolen iPhone to the home. (Denver District Attorney via AP)

Bui pleaded guilty to two counts of second-degree murder. A plea deal reached between the defendant and prosecutors proposes a sentence of up to 60 years in prison -- 30 years for each count. The maximum penalty for each count of second-degree murder is 48 years and a $1 million fine.

Judge Karen Brody set sentencing for July 2.

Bui was seated at the table with his lawyers during the hearing with his hands cuffed in front of him and wearing a green jail uniform.

He gave perfunctory answers to the judge’s questions as his parents watched from the court gallery and listened to the proceedings as relayed by an interpreter through headphones. Bui’s father told reporters after the hearing that they accepted the plea agreement.

Bui is the last of the three friends to enter a plea in the fire that killed Djibril Diol, 29, and Adja Diol, 23, and their 22-month-old daughter, Khadija Diol. Their relative, Hassan Diol, 25, and her 6-month-old daughter Hawa Beye were also killed. Three other people escaped by jumping from the second floor of the home, breaking some bones.

No relatives of the victims were in court, but they watched the proceedings online, said Ousman Ba, program coordinator of the African Leadership Group who is a spokesperson for the family of Djibril Diol and Adja Diol. He also consults with Amadou Beye, whose wife and daughter were killed.

The families supported the deal even though they had originally hoped to see Bui sentenced to life in prison without the possibility of parole, Ba said. It is the harshest sentence available in Colorado since it abolished the death penalty and is the automatic punishment for a first-degree murder conviction. However, since people who commited crimes as juveniles are treated differently and allowed parole, the families believed that this plea agreement was the best option to resolve this case after nearly four years, he said.

“We are Muslims. We do believe justice will be served by Allah, our maker,” said Ba, who thanked prosecutors for keeping the families informed about the case.

One of the counts of second-murder that Bui pleaded guilty to was for killing Dijibril and Adja Diol and their child. The other is for killing Hassan Diol and her baby. Sixty other charges Bui had faced, including first-degree murder, attempted murder, arson and burglary, were dropped by prosecutors under the plea deal.

Last year, Dillon Siebert, who was 14 at the time of the fire, was sentenced to three years in juvenile detention and seven years in a state prison program for young inmates. He pleaded guilty to second-degree murder under a deal that prosecutors and the defense said balanced his lesser role in planning the fire, his remorse and interest in rehabilitation with the horror of the crime.

In March, Gavin Seymour, 19, was sentenced to 40 years in prison after pleading guilty to one count of second-degree murder.

Seymour and Bui pleaded guilty after a failed effort to get the internet search history evidence that led to their arrests thrown out.

The investigation of the fire dragged on for months without any leads. Surveillance video showed three suspects wearing full face masks and dark hoodies. Fears that the blaze had been a hate crime led many Senegalese immigrants to install security cameras at their homes in case they could also be targeted.

Without anything else to go on, police eventually obtained a search warrant asking Google for which IP addresses had searched the home’s address within 15 days of the fire. Five of the IP addresses found were based in Colorado, and police obtained the names of those people through another search warrant. After investigating those people, police eventually identified Bui, Seymour and Siebert as suspects. They were arrested about five months after the fire.

In October, the Colorado Supreme Court upheld the search of Google users’ keyword history, an approach that critics have called a digital dragnet that threatens to undermine people’s privacy and their constitutional protections against unreasonable searches and seizures.

However, the court cautioned it was not making a “broad proclamation” on the constitutionality of such warrants and emphasized it was ruling on the facts of just this case.

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This story has been updated to correct the spelling of Hawa Beye's last name.