Alexis Tiara Murphy was 17 at the time of her abduction and murder.
The US Marshals are offering a reward for information leading to the location and arrest of a man they've identified as a "person of interest" in the murder of Kevin Jiang.
Dawnita Wilkerson has reportedly and previously been described as a "very funny" person with a "heart of gold."
Investigators initially believed 18-year-old Kaylah Blackmon "might be in danger" after her boyfriend was found murdered in the yard of a church.
The relationship of the victims is not known yet.
Law enforcement has received thousands of tips on the unsolved Delphi investigation, but despite the national attention and all of the leads, the case remains unsolved today.
The FBI created an age-enhanced photo of what Hung Tien Pham may look like today at the age of 60. Agents consider Pham armed and dangerous and he's fluent in Vietnamese, English and Chinese.
Authorities say the victims were last seen on December 30, 2020 at a Florida gas station before they went missing.
Carmelo ""was old enough to dance to a good beat but too young to know his favorite color."
Divers have focused their searches in the Ohio River near the area where the toddler's mother's body was discovered.
Investigators say wife Patricia Walski's body was discovered inside their Pennsylvania home in August 2020.
Investigators continue to search by air, land and water for any sign of Dr. Tamara Saukin who disappeared on Staten Island in New York.
If you have any information on the unsolved murder of Dina Mosley, please call CrimeStoppers in Ohio: 513-352-3040.
Both suspects are wanted in separate cases, detectives are hoping someone will come forward with information leading to their whereabouts.
Since 2005, the US Marshals say they've found more than 2,000 children and have recovered missing kids in 75 percent of the cases it has received.