Port Orange Police have yet to officially confirm the body found on Friday is McMullen's. They are waiting for the medical examiner to make a positive identification. Police said it appears McMullen killed himself.
Investigators said they connected Kessler to McMullen after a family friend found her body at the home of the suspect’s parents, who were out of town at the time.
Read: 'She was in a fight for her life': Woman was stabbed more than 100 times, police say
“There’s somebody on the kitchen on the floor. There’s blood all over them,” the 911 caller told police Monday.
“I’m sure she got loose from him and made it to that kitchen," said Kessler's father, Wyatt Davis. "And I’m sure he might even have a few wounds of his own,” Davis said Thursday.
READ: ‘Turn him in. Man up’: Family, friends plead for surrender of daughter’s killer
Daytona Beach police found Kessler’s 1998 Buick Regal abandoned off International Speedway Boulevard – 9 miles from the crime scene – the day after Kessler was found.
Police said the motive for the killing remains unclear.