Jacksonville police: Wanted teen taken into custody

Raw audio: Mother of missing Neptune Beach teen Logan Mott pleads for public's help in finding him

LATEST UPDATES: Wanted teen is in custody

UPDATE, Friday, 11:08 p.m.: The Jacksonville Sheriff's Office confirms that Logan Mott is in custody. JSO said he was detained by the U.S. Customs and Border Protection as he tried to enter Canada from Buffalo, NY.

Logan's mother Carrie Campbell-Mott released the following statement after learning her son was in custody:

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"We are relieved he is safe and in custody and we just ask for everyone to give us time to sort out what happened. That no matter what, Logan is our child and we love him and are standing by him to help in any way. We want to find out what happened to Kristina and we need time for that to happen."

Friday, 5:31 p.m. update: Police said that a body found in the backyard of a Neptune Beach home is believed to be that of missing grandmother Kristina French.

It is the same home where police have been investigating the disappearance of teen Logan Mott and French, his grandmother.

Logan Mott is believed to be in south central Pennsylvania and has a warrant for his arrest is being issued on a charge of auto theft, as he is believed to have the Dodge Dart initially described in the Florida Missing Child Alert issued on Wednesday.

Friday 3:45 p.m. update: The Jacksonville Sheriff's Office will hold a 5 p.m. briefing at Neptune Beach City Hall on the search for Logan Mott and his grandmother Kristina French. Click here to get the latest updates from that briefing.

Friday 10:40 a.m. update: Jacksonville Sheriff's Office has brought in a mobile command unit as the search for evidence continues at the Neptune Beach home where a missing teen lives with his father.

Logan Mott and his grandmother Kristina French have been missing for three days.

Police say they have no new information to release about the case.

Friday 8 a.m update: "We are begging. ... Without insulin he WILL die."

Logan Mott's mother is sharing an emotional plea for the safe return of her son and his grandmother.

She is urging anyone with information about where they are to come forward.

"So if you have taken them we are begging you to return Logan and Kristina. We are scared and we just want our son Logan and his grandmother Kristina back. Please. Without insulin he WILL die," she wrote on Facebook.

5:38 p.m.: Jacksonville police release the latest image of Logan Mott, 15, who has been reported missing since Wednesday. Police said the image is said to be the most current photo of Mott.

3:38 p.m.: The sister of a missing woman told Action News Jax the family just wants answers regarding the disappearance of a 15-year-old and his grandmother.

1 p.m.: JSO is shutting the block down at Seagate Avenue from 4th Street to 3rd Street. Action News Jax reporter Russel Colburn is at the scene working to learn the latest.

Original Story:

The Jacksonville Sheriff's Office is asking for the public's help in locating a woman and a teen believed to be missing and endangered.

They are Logan Mott, 15, and Kristina French, 53. Police say they may be traveling in a silver, four-door Dodge Dart, Florida tag DLLT42.

A Florida Missing Child Alert has been issued for Logan by the Florida Department of Law Enforcement.

According to that alert, Logan was last seen in the 400 block of Seagate Avenue, where there is currently a heavy police presence of Jacksonville Sheriff's Office and Neptune Beach Police Department units.

Logan's mother Carrie Mott tells Action News Jax that French is Logan's grandmother. Neither she nor Logan's father have heard from them in at least 12 hours, but she said investigators are working to determine if it has actually been longer that the two have been missing.

She said she spoke to Logan on Sunday and that is the last time anyone has spoken to him. She said that Logan seemed to be in a good mood during that conversation.

Carrie Mott said Logan's father -- her ex-husband Eric Mott, who she says is a 17-year-veteran with the Jacksonville Sheriff's Office -- was on vacation with his girlfriend and arrived back into the Jacksonville area Wednesday. She said Eric Mott and his girlfriend took an Uber ride home after they were not picked up at the airport by Eric's mother.

When they arrived at the Neptune Beach home, the door was open and the home had been ransacked and Eric Mott's guns were missing out of the gun safe, Carrie Mott said. The Jacksonville Sheriff's Office was called and they are treating the home as a crime scene, Carrie Mott said.

Jacksonville police also said that firearms are missing from a home associated with Logan and French, so the car or the individuals should not be approached if encountered. Instead, people are asked to call 911 immediately.

Logan is described as having brown hair, brown eyes, is 5 feet, 9 inches tall and weighs 140 pounds. French is described as having blond hair, blue eyes and is 5 feet 4 inches tall. Carrie Mott said her son is insulin-dependent and he does not have his insulin pump.

Anyone who has any information in reference to the location of either of them and who saw them or the vehicle anytime Wednesday, or in the last three days, is asked to contact the JSO at 904-630-0500 or email JSOCrimeTips@jaxsheriff.org. To remain anonymous and receive a possible reward up to $3,000, contact Crime Stoppers at 1-866-845-TIPS.

MISSING ENDANGERED PEOPLE: Jacksonville police are asking you to call 911 if you have seen these people or this vehicle...

Posted by Action News Jax on Wednesday, November 22, 2017

UPDATE: A Florida Missing Child Alert has been issued for 15-year-old Logan Mott, last seen in Neptune Beach....

Posted by Action News Jax on Wednesday, November 22, 2017