Rebekah Bletsch

MUSKEGON COUNTY, MI - From reviewing the gripping 911 tape of a desperate couple trying to save a dying Rebekah Bletsch a year ago, to sifting through hundreds of pages of police notes, investigators are hitting the restart button on her homicide case.

Monday, June 29, 2015 marks the one year anniversary of the young mother's death, and investigators are in the process of sifting through what they have so far compiled on her case, hoping something new jumps out at them, said Muskegon County Undersheriff Dan Stout.

Essentially the lead agency is going over the information with a fine-tooth comb, Stout said.

"We're actively investigating this and we're working it diligently," he said. "What we did in the last three weeks is gather all the reports together and we're going to go over those reports again. We want to be sure we didn't miss anything and see what we can do better."

Bletsch left behind her daughter, Ellie, and husband, Kevin Bletsch, after police say she was killed sometime around 6 p.m. June 29, 2014 not long before her body was found. She was located by passersby who attempted to resuscitate her along Automobile Road where Bletsch was known to regularly jog or walk.

The killer or killers literally left the woman on the roadway to die, police have said. She was 36.

According to police, a couple driving by saw Bletsch lying on the side of the 4300 block of Automobile Road and called 911 at 6:11 p.m. That was about three-quarters of a mile from her home in the 5100 block of Automobile.

The chilling 911 audio reflects confusion in panic in the voices of the 911 caller.

The man and woman who found her stopped when they came across a still-breathing Bletsch lying face down on the road, with blood coming from her head and right ear.

"We've come up to this lady, she's laying in the road, I think she was hit by a car," the man tells the Muskegon County Central Dispatch operator.

"She has a pulse. We just came up on her. She is breathing. She has a pulse. She has a head injury and she's lying face down," he tells her.

Re-reading the police reports may just force investigators to take a harder look at initial details of the case and prompt some answers, Stout said.

Stout said the report on her case is enormous - enough papers to fill a "newspaper box," he said.

"That's how big our reports is. We are reviewing it and we want to solve this case and we will keep on it until we do," Stout said.

He declined to give any details on whether more than one person is suspected of slaying Bletsch, but confirmed on Friday that no one was in police custody, charged in connection with her death.

"We are looking at all possibilities," Stout said.

Her death certificate listed "multiple gunshot wounds of the head" as the cause of death. The couple trying to assist her stated, according to the 911 tape, that she was gravely injured when they found her, making very little noise.

At first, her death was reported to police as a hit and run when the 911 call first came in, but investigators have said that's because passersby reported it as that, not because police believed that's what happened.

Police are asking anyone who may have information about the case, or saw anything suspicious in the area, to call the Muskegon County Sheriff's Office Detective Bureau at 231-724-6658 or Muskegon County Silent Observer at 231-72-CRIME or go to its website at www.silentobservermuskegon.com. People can also anonymously text MKGTIP and their message to 274637 (CRIMES on most cell phones).

Heather Lynn Peters covers police and fire, and writes a statewide food column, The Spunky Kitchen, for MLive Muskegon Chronicle. Email her at hpeters@mlive.com and follow her on Twitter @HLPNEWS.