ST. LOUIS COUNTY (KMOV.com) -- A new development in the investigation into the death of 12-year-old Christopher Marks came to light Monday.
A nationally recognized drowning expert is now helping St. Louis County police look into the incident.
St.Louis County Police Chief Tim Fitch says Andrea Zaferes was brought in because she was highly recommended by the Center for Missing and Exploited Children, and she just happened to be conducting training in the Metro East when the Marks investigation got underway.
Zaferes is, according to her biography, an author, public speaker and trainer for law enforcement in diving, water rescue and homicide investigations.
Chief Fitch tells News 4 they turned to this expert because they wondered if it was possible for Marks to float down river as far as he apparently did with the low levels of the Meramec during this drought.
“Basically, what she was able to do was do a few tests with homicide investigators at the scene, she visited the scene, and basically said it’s absolutely possible it happened like we think it did,” he said.
Police are also looking into reports that Marks also had some beer before going in the river.
The chief says they are still waiting for lab tests to tell them how much alcohol the child had in his system.
Authorities say Zaferes’ information is valuable and moving this investigation forward.