Following Madeleine McCann's May 3, 2007, disappearance from her parents' hotel room in Praia da Luz, Portugal, many began seeking answers regarding her whereabouts. Throughout the investigation, some believed that her parents, Kate and Gerry McCann, had been involved in the assumed crime. However, in recent weeks, police began looking at Christian Brückner, who has become the prime suspect.

Now, it has been said that members of law enforcement are waiting to find specific details before officially charging him with the three-year-old's murder.

According to the Daily Mail, Julian Reichelt, the editor-in-chief of German tabloid Bild, discussed the current status of the case on "Good Morning Britain." 

READ: Madeleine McCann Case Update: Prime Suspect Named, Police Believe Others Have 'Concrete Knowledge'

During the appearance, Reichelt stated that while police are likely aware of how McCann died, they are still looking for information pertaining to where her body was buried. Continuing, he added that law enforcement are interested in Brückner due to the fact that they believe he has "knowledge" surrounding the abduction that could only be known but the person responsible.

It has also been said that officials are hoping that they can find a "knockout" piece of evidence that could directly tie him to McCann's murder. As for who could potentially supply it, they reportedly believe that British tourists "are likely to be key to finding it."

Prior to the recent discussion surrounding the 43-year-old, Brückner has been a focus in recent weeks, even though he has not officially been named by police. Prosecutors are allegedly waiting to officially name him due to the fact that they are trying to "prevent" both him and his legal team from being able to take a new step in the near future. Additionally, some believe that "Christian B" may also have ties to other missing children, including 5-year-old Inga Gehricke that some have called "the German Maddie." 

Brückner is not the only person that police have taken a look at in the years since McCann went missing in 2007. Previously, they also zeroed in on Martin Ney, who is serving a life sentence for the abductions and murders of three children, as they attempted to find answers pertaining to the "unsolvable" case. 

Madeleine McCann Madeleine McCann disappeared on holiday in Praia da Luz, Portugal, on May 3, 2007. Photo: METROPOLITAN POLICE/Handout