Investigators say Garcia and Rivera turned their phones off before 10 a.m. the day they murdered Markel, then fled back to North Miami, taking Interstate 10 to I-75.
The first person Garcia called when his phone was picked up again at 12:30 p.m. on cellular towers in the Lake City area was Katherine Magbanua.
The call to Magbanua, the mother of his two children, was one of 2,700 investigators found Garcia made to her between May 1, 2014, and July 19, 2014 - the day after Markels killing. After that, his phone went dead for good.
Magbanua, who is listed on state records as vice president of Garcias company, S. Garcia Solutions Inc., was involved at the time of the murder in what DeLeo described as a very personal relationship with Charles Adelson.
In Garcias arrest documents, she is cited as the link between the accused killers and the Adelsons.
Call records show Magbanua was one of Charles Adelsons top contacts. She too is still being investigated, DeLeo said. There is no mention of her being interviewed yet by police.