This is kind of interesting. Sounds like LE did not think that their download of WA's phone at the police station was sufficient -- they apparently got a search warrant for her phone a few days days later:
"Three days after Markel was killed, a judge signed a search warrant for information on Wendi Adelson’s phone and investigators began searching her Web browser and email records.
On her computer, investigators found Google Chrome keyword searches for Markel’s girlfriend Amy Adler, Adler's ex-husband and Adler's brother. They also found that Wendi Adelson had searched several po rn sites for “teacher/student po rn.”
Within months of Dan Markel's slaying, detectives had most of the evidence linking two South Florida men to the killing of the Florida State law professor.
www.tallahassee.com