(WWJ) - A reward has been increased to $10,000 for tips leading to a woman who vanished in northern Michigan after calling for help from a cabin in the woods.
Adrienne Quintal, 47, was last seen downstate as she was headed to Honor, Michigan -- west of Traverse City -- to go to her family's cabin to relax with her boyfriend. She was last heard from early in the morning of Thursday, Oct. 17, when she called a friend in Warren asking for help, officials said.
The friend called the Benzie County Sheriff’s Office; and deputies, assisted by Michigan State police, immediately went to the cabin.
The sheriff's office said investigators found "evidence of possible foul play," but did not find Quintal, who left her vehicle, cell phone and purse behind. A search of the area by a K9 team and aerial drones also didn't turn up any sign of her.
On Saturday, Oct. 19, investigators returned to the cabin to conduct another search of the area, but no new evidence was discovered. Investigators have also been conducting witness interviews in both Benzie County and Southeast Michigan, but so far no tips have led to Quintal.
Last week, the Benzie County Sheriff's department confirmed that Quintal's boyfriend has been questioned and is considered a person of interest in the case. Police haven't said much about the man and at this point, it's unclear how he might be involved in her disappearance.
Because all searches have so far turned up no results, police in Benzie County believe that Quintal is no longer in that area.
"We're still hopeful that we'll find her alive," Sheriff Ted Schendel told WWJ.
Quintal, who goes by the nickname "Ada," is described as a white female with long brown hair and brown eyes. She is 5'7'' tall and weighs around 125 lbs.
Anyone with information is asked to contact the Benzie County Sheriff's Office at 231-882-4487. Tips can also be submitted to the Michigan State Police Silent Observer at 1-866-774-2345.