Mackenzie Johnson

Reporter

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Mackenzie joined WDEF News 12 in May, 2026.

Articles

Fallen Soldiers Honored at Chattanooga National Cemetery

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Remembering our nations fallen soldiers is a top priority for many in the Scenic City. Hundreds came out for a special ceremony Monday at the Chattanooga National Cemetery. WDEF News 12's Alisha Searl walks us through a day that means so much to so many people.

Largest Student Loan Debt Ever Recorded

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The class of 2014 is graduating with the highest student loan debt ever recorded. That's according to the latest published reports. WDEF News 12's Alisha Searl walks us through this depressing statistic, and shows us how this isn't only a problem from college graduates.

Crime Heats Up During Summer Chattanooga Months

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As the weather heats up, so does the crime in the Scenic City. To combat at problem, local organizations are holding summer camps. WDEF News 12's Alisha Searl tells us how these extremely affordable programs are surprisingly beneficial to the entire community.

First Responders Recognized at Erlanger

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The regions first responders were honored Tuesday for their life-saving efforts. Awards were given out at Erlanger in conjunction with National EMS week. WDEF News 12's Alisha Searl caught up with some folks who deserve to be called heroes.

Not Guilty Verdict Handed Down in Tugboat Trial

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Not guilty. That's the verdict in the homicide trial involving a local tugboat captain. Charles Luetke was accused of killing two fishermen in 2010 when his barge collided with a fishing boat. WDEF News 12's Alisha Searl has reaction from both sides of the highly debated case. It's our top local story.

Governor Bill Haslam Makes Good On Tennessee Promise

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Hamilton County parents tell us they're excited about the Tennessee Promise. The bill was signed into law this week. Starting in 2015, all graduating high school seniors in Tennessee will be given two free years of community college. Governor Bill Haslam was supposed to have been in Chattanooga today for a ceremonial signing of the bill, but was unable to attend. WDEF News 12's Alisha Searl shows us what this bill means for local families.

Family Speaks About Donnie Brantley's Dismissed Murder Charge

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We're learning more about why a murder charge was dropped against a Bradley County man earlier this week. Five years ago, Marsha Brantley disappeared. Authorities believe her husband, Donnie Brantley, killed her, but her body has not turned up. The case was supposed to go to trial this week, but Marsha's family members essentially called it off. WDEF News 12's Alisha Searl spoke to them Wednesday afternoon.

Murder Charge Dismissed in Donnie Brantley Case

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A Bradley County murder trial ends before it even starts. As of Monday morning, the charges against Donnie Brantley have been dismissed. He was accused of murdering his wife Marsha in 2009, but her body was never found. Neighbors reported her missing. Last August, Brantley was indicted, and this week his trial was supposed to start. But, as News 12's Alisha Searl found out, there was conflict among the district attorney's office that prevented the case from being prosecuted.

Chattanooga Mayor Andy Berke Helps Small Business Owners

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Chattanooga Mayor Andy Berke discusses a way to help small businesses and grow the economy at the same time. Mayor Berke says, until now, the city has not been an active partner in economic development on a daily basis. WDEF News 12's Alisha Searl takes us through the new initiative.

Supreme Court Upholds Public Prayer

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Prayers before council meetings do not violate the constitution. That's according to the Supreme Court. In a five to four decision Monday, the justices ruled in favor of prayer. But what does that mean for one controversial case here in Hamilton County? WDEF News 12's Alisha Searl finds out.

Cleveland Police Will Soon Issue E-Tickets

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E-tickets ... have you ever heard of them? Probably not since most larger cities haven't adopted the new system. However, Cleveland has taken notice, and come early Fall expect some pretty big changes if you get pulled over within the city limits. WDEF News 12's Alisha Searl explains in this report from Cleveland.

Ringgold Man Who Shot and Killed Teen in his Yard Dies

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A Ringgold man who shot and killed a teenager on his property has died. It happened last November. Fred Youngblood shot and killed Dalton McConathy, 17. The case against Youngblood was pending, but since he died it can no longer be presented to a grand jury. WDEF News 12's Alisha Searl has reaction from the McConathy family.