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EDGEWOOD, Md. -- Anthony Johnson is a Master Barber in Edgewood, Maryland. After he noticed violence was becoming too common in the area, he decided he needed to do something to help. That's when 208

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

DENVER -- When Peter Cushing turned to face the camera in Rogue One, Star Wars fans were as excited as they were confused.After all, the actor had died more than 20 years earlier, and yet, there was no mistaking him.For a major Hollywood movie, this is a clever trick.But not everyone is trying to entertain us, and you don't need a million-dollar budget to deceive."You take the face of one person and put it on the body of another," said Jeff Smith, associate director at the National Center for Media Forensics at the University of Colorado Denver.With the next U.S. presidential election looming, intelligence officials and leading researchers like Smith are warning of a different kind of fake news: doctored videos known as deepfakes."They are manipulated videos that have been edited using deep learning technology," Smith said.Deepfakes are essentially videos that use artificial intelligence and deep learning to make spoofs like 951

Emergency cell phone service in locations across the country has been disrupted by an outage at Louisiana-based communications company CenturyLink.The company tweeted Friday morning it had "discovered some additional technical problems" as it worked on restoring service. The interruption began Thursday."We continue to make good progress with our recovery efforts and we are working tirelessly until restoration is complete," CenturyLink said.In Boston, Massachusetts State Police tweeted that the issue was resolved about 8 a.m. Friday. The outage affected only wireless 911 calls, not landline calls, CNN 620

Despite objections from many reporters, cameras operated by reporters have been banned from the US Senate gallery during the duration of the impeachment removal trial of President Donald Trump. Video from Tuesday's trial came from cameras operated by the Senate. The Senate's video feed focused on the speaker, and rarely showed the entire chamber.The only still images that came from the US Senate chamber were from a number of sketch artists from major media organizations. The Associated Press have provided the following sketches from Day 1 of the trial. 571