Investigators following her cell phone found that 23-year-old Mackenzie Luk and the man expected to be accused of murder were in the park where she was last seen on June 17 within a minute from one another.
That was when the Luk's phone stopped receiving data or localization services, the police said.  Ayoola Ajayi, 31, was arrested Friday and is expected to be charged with aggravated murder. He also faces charges of heavy kidnapping, impediment to justice and defiling a body, according to Salt Lake City Police chief Mike Brown.
Once Lick disappears, the suspect initially denies knowing what he looks like, said Brown. But several photos of it were found on his phone, and the "digital footprint" continues after the arrest, police said. An installation that the Luc family's sister confirmed to belong to the missing student, followed by another user on or around Wednesday, confirmed by CNN.
Brown confirmed that the investigators considered the activity on the account. "This is a digital court investigation," he said. "This covers computers, mobile phones, IP addresses, URLs, text applications." Judicial evidence also found
But the investigation is not limited to just digital steps. Investigators have also found evidence of criminals after they searched for the property and property of Agay on Wednesday, police said. As they did, their neighbors told the police that they had seen him use petrol to burn something in his backyard on June 1
Police searched for evidence
"Excavations have been made in the burning area, which has led to the discovery of several charred shipments that are in line with Mackenzie Luk's personal belongings," Brown told reporters.
Police also found charred materials alleged to be female tissues corresponding to Luk's DNA, he said. Researchers on mattresses are trying to find that it was found, police write on Friday night without providing further details.
She stopped talking about 3 am
Onc sends her parents at 1 am on June 17, when she landed at Salt Lake City International Airport, police said. She was seen at the airport observation that went through the baggage before taking Light to Park Hatch.
Police reported on Friday that all communications with Luke's phone were interrupted at about 3 am – the same time they said they left the park with the suspect.
Telephone records show her last communication with the suspect, said Brown. Her family and friends have not seen or heard her after this morning. Her sister sister told CNN that CNL had also missed the exams. "She'll never miss her mid-term exams or something." She was not at home. She did not appear at work or something.
Following the arrest of the suspect on Friday, Brown contacted his parents to tell them the news. They are "devastated and broken by this news," he said.
"This is one of the most difficult phone calls I've ever made he was doing, "he said.
The suspect lived about five miles from the park where Luke was last seen. According to his LinkedIn page, he is a former IT specialist for the US Army and recently worked for Dell and Goldman Sachs. CNN reaches US and Dell army for comment
Dakin Andon of CNN contributed to this report.