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Cellphones and social media were at the heart of the investigation that led to an arrest in the killing of a University of Utah student who vanished nearly two weeks ago.Investigators tracking her cellphone discovered that 23-year-old Mackenzie Lueck and the man expected to be charged with her murder were both in the park where she was last seen on June 17 within a minute of one another.That was around the time Lueck's phone stopped receiving data or location services, police said.Ayoola Ajayi, 31, was arrested Friday and is expected to be charged with aggravated murder. He also faces charges of aggravated kidnapping, obstruction of justice and desecration of a body, according to Salt Lake City Police Chief Mike Brown.Police find her pictures on his phoneAfter Lueck disappeared, the suspect originally denied knowing what she looked like, Brown said. But several pictures of her were found on his phone, and the "digital footprint" has continued even after the arrest, police said.An Instagram account that Lueck's sorority sister confirmed belongs to the missing student followed another user on or about Wednesday, CNN verified.Brown confirmed that investigators are looking into the activity on the account."This is a digital forensic investigation," he said. "This is covering computers, cellphones, IP addresses, URLs, texting apps."Forensic evidence is also discovered But the investigation is not just limited to digital footprints.Investigators also found forensic evidence after they searched Ajayi's home and property Wednesday, police said. As they did, his neighbors told police they saw him using gasoline to burn something in his backyard on June 17 and 18, Brown said.Police said the search yielded multiple items of evidence."A forensic excavation of the burn area was conducted, which resulted in the finding of several charred items that were consistent with personal items of Mackenzie Lueck," Brown told reporters.Police also discovered charred material that was determined to be female human tissue consistent with Lueck's DNA profile, he said. A mattress investigators have been trying to find has been located, police tweeted Friday night, without providing additional details.She stopped communicating about 3 a.m. Lueck texted her parents at 1 a.m. on June 17 when she landed at Salt Lake City International Airport, police said. She was seen on airport surveillance walking through baggage claim before taking Lyft to Hatch Park.The Lyft driver said she did not appear to be in distress, according to Salt Lake City police assistant chief Tim Doubt.Police said Friday that all communications with Lueck's phone ceased around 3 a.m. that morning -- the same time they said she left the park with the suspect.Phone records showed her last communication was with the suspect, Brown said. Her family and friends did not see or hear from her after that morning. Her sorority sister told CNN affiliate KSL that Lueck had also missed exams."She's extremely dedicated," Ashley Fine told the TV station. "She would never miss her midterms or anything like that. She hasn't been home. She didn't show up to work, or anything."A suspect is arrested After the suspect's arrest Friday, Brown contacted her parents to tell them the news. They were "devastated and heartbroken by this news," he said."This is one of the most difficult phone calls I've ever made," he said.The suspect lived about five miles from the park where Lueck was last seen.According to his LinkedIn page, he is a former information technology specialist for the US Army and recently worked for Dell and Goldman Sachs. CNN has reached out to the US Army and Dell for comment. 3686

Facebook is down. I repeat, we have a #FacebookDown. pic.twitter.com/pyjDqQaoKz— PatrickJDoody (@PatrickJDoody) March 13, 2019 139

Dreams don’t come easy in Los Angeles. Finding a place to live can be the barrier that keeps dreams from coming true. Daen Weary’s dreams brought her to L.A. from St. Louis.“Right now, I’m a security guard, but I’m into acting right now and I’ve done some minor work,” she says. Since April, Weary has called 321

DENVER, Colo. – The airline industry has taken a huge hit during the COVID-19 crisis and even though there are thousands of planes grounded, some people still need to travel.Millions of Americans are currently under stay-at-home orders which caused international air travel to plummet, but within the United States, thousands of domestic passenger flights are still taking off each day.One expert wants to inform the public about what they need to know about traveling in this climate.“Some carriers overseas have suspended operations entirely,” said Ben Mutzabaugh, senior aviation editor at The Points Guys.According to 634

CHICAGO, Ill. – For the first time, researchers say there’s a real connection between people not getting enough sleep and them craving calorie-packed junk food. For graduate student Daria Porter, sleep is often in short supply.“To function, I drink coffee and then during the day, I'll drink tea,” said Porter. But not getting enough rest can also lead her to making unhealthy choices.“Sometimes we'll run down here and grab a sweet snack if we're really struggling all of us,” Porter said. We all crave junk food from time to time, but now scientists say they might know more about how your nose plays an important role in why you reach for that doughnut when you’re tired. “So, the sense of smell helps us to decide what to eat and what not to eat,” said Thorsten Kahnt, an Assistant Professor of Neurology at Northwestern University’s Feinberg School of Medicine.Kahnt just completed research looking what happens in the brain when study participants got a normal night’s sleep, versus just four hours, and how that affected their food choices.“So, when people are sleep deprived, they changed the type of food that they ate,” said Kahnt. The research indicated that when tired, the brain goes into hyperdrive – causing an enhanced response to high fat, calorie dense foods.“So, they ate food like donuts or chocolate chips that are richer in calories,” said Kahnt. In addition, scientists scanned people’s neurological responses to food and non-food odors when they were sleep deprived versus being well-rested.“The part of the brain that responds or processes food or odors in general,” said Kahnt. “That has a stronger response to food and non-food odors when you're sleep deprived.”The research provides new insights into the biological connection between sleep habits and weight gain. And how understanding that connection can help thwart making bad choices.Researchers say the best bet is to put that snack down and instead hit the sack. But in the absence of a good night’s rest, they say – lead with your nose, away from temptation. 2055