A new article from the Washington post about the case includes:
But an FBI profiler has concluded that the slayings that gripped residents in the Largo area this year are not the work of a serial killer, authorities said. In fact, the profiler said, the double homicides are not connected at all, according to county police investigators handling the cases.
Whoever killed the Loftons seemed to be more organized, less messy, they said. Unlike in the Dewitt case, the killer or killers made no effort to take the bodies elsewhere, they said.
and.......
At the top of the list of questions investigators have is how Karissa Lofton got home from work at the Golden Corral restaurant the night of the killings, Nelson said. She was seen leaving at 9 p.m., family members have said, and her mother typically picked her up.
But detectives said they don't think Karen Lofton showed up at the restaurant that night. Family members told investigators that Karen Lofton religiously armed her burglar alarm before going anywhere. On the night of Jan. 25, investigators said, security company records showed it was never armed.
Shortly after 2:30 a.m. Jan. 26, sources have said, Karissa called 911 from her home, whispering as she told a dispatcher that she and her mother had been shot. She spoke as if the shooter or shooters were still in the house, sources have said.
The Dewitt killer or killers, on the other hand, were more "haphazard," Schartner said. He revealed for the first time that the women were dead before their bodies were loaded into a stolen car. The killer then drove the car past the house from which it was taken and set it ablaze in a driveway in plain view. After that, Schartner said, detectives think the suspect or suspects fled through a nearby back yard and into woods. A canine unit was able to trace the trail, he said.
more at:
http://www.washingtonpost.com/wp-dyn/content/article/2009/07/11/AR2009071102659.html?hpid=sec-metro
Neither case has been solved, no purses have been recovered and profilers have been known to be wrong. If this was a group of men who committed these murders, the profile can be off base in my opinion.