MUSKEGON COUNTY, MI - Jeffrey Willis is on trial for the murder of Rebekah Bletsch, but it was the kidnapping of a teenager that led to his arrest that dominated court testimony Tuesday.

The morning's court proceedings included testimony of the teen who escaped her kidnapper - and the playing of her dramatic 911 call - and the afternoon was spent on the quest to find her kidnapper that led investigators to Willis.

In addition to the kidnapping, which occurred on April 16, 2016, Willis is charged with the abduction and murder of Jessica Heeringa, who disappeared on April 26, 2013, from the Muskegon County gas station where she worked.

Bletsch was shot in the head several times as she was out for a jog on a rural Muskegon County road on June 29, 2014. Muskegon County Prosecutor D.J. Hilson alleges that all three crimes were sexually motivated and evidence from the kidnapping and the Heeringa case has been allowed to be introduced into the Bletsch trial.

Hilson spent Wednesday calling witnesses who described linking Willis to the teen's kidnapping and finding a gun and bondage and sexual items in his van.

Michigan State Police Sgt. Thomas Flowers testified that several locked boxes were found in the van. One contained a Walther P22 handgun, ammunition, Viagra pills, a bottle of insulin and four syringes, one of which had insulin in it.

A tool box in the van contained handcuffs attached to a chain; another section of chain; rope; a rubber ball attached to a strap used as a gag; a steel pole with restraints; a J hook; gloves; lubricating jelly; two sex toys, one of them battery-operated; two lists of names and addresses; and two photos of a man with two unclothed women, Flowers said.

On the inside of the tool box cover was a drawing of a female body with what appeared to be injection points labeled as fast, medium and slow speed, he testified.

At the home of Willis' late grandfather, which only Willis had access to, investigators found a hand-written list that had been tossed into a garbage can in the garage, said Michigan State Police Detective Sgt. Zachary Sparks. He said the list was divided into three sections including one labeled "kit" under which were listed handcuffs and keys, hood, ball gags, restraint, tool box, locks and keys, gloves, tape and wash cloth, vibrator bullet, neck restraint, bag of rubber gloves, vibrator bag, vibrator, batteries, condom, French tickler, zip ties, needles and hook.

Also on the list were cameras, gas can, matches and tripods, and, under a section titled clothing, "her panties," he testified.

Sparks said he collected writing samples from Willis to compare the handwriting to the list.

In the basement of the grandfather's home on Bailey Street in Norton Shores, investigators found four bottles of bleach, and seven containers of laundry detergent with bleach, Sparks said. Most of the bleach as well as the detergent containers that had readable codes on them were manufactured in 2013, he said.

At Willis' home, investigators seized three computer towers, a thumb drive and two external hard drives, one of which was concealed in a cold-air return, said Muskegon County Sheriff Detective Chad Peterson. They also found a gun registered to Willis, he said.

Also testifying Tuesday were witnesses who described using footage from a blueberry farm's surveillance camera to narrow down the type of minivan they believed was used to kidnap the teenager last year. The van was on the video around the time of the kidnapping, which was in the area of the farm, and matched the teen's description, said Muskegon County Sheriff Detective Matt Schultz.

Features on the van led experts to 30 such exact models in the Muskegon area, including one owned by Willis, Schultz said. The teen said she picked Willis out of a photo lineup.

The 17-year-old was abducted from River Road when she was 16. The teen, identified only as MJN, described climbing into a man's van upon his promise to use his cell phone only to learn the phone was dead. The man wouldn't let her out of the van and pulled a gun on her, leading her to jump as it traveled down Green Creek Road.

The girl said she was lost and scared after trying to walk home from a party the night before and had wandered for hours before the van pulled up behind her. But that fear paled to the terror she experienced after the gun was pulled and she jumped and began running.

She looked back and saw "him standing there with a gun pointed at me," she said.

Graphic photos shown on the courtroom screen showed abrasions the teen suffered on her arm, shoulder and hip after jumping from the van.

Dawn Schmitt testified she was home drinking coffee on the deck of her Green Creek Road home when she heard what sounded like a man and woman arguing. Schmitt looked out her front door and saw a terrified young woman running barefoot up the road repeatedly screaming "help, help, he's got a gun, he's got a gun," Schmitt said.

Schmitt ushered the girl inside, describing the teen as "hysterical" and disheveled and the scene as "chaos." Schmitt called 911 and a recording of the call was played in court.

On it the teen sounded panicked as she described her kidnapper to the dispatcher, crying and sobbing until a sheriff deputy arrived.

"She was shaking, bleeding, gasping for breath ... hyperventilating," Sheriff Deputy Jeff Blackmer testified about the teen.

Blackmer said he found an unfired .22-caliber found in the roadway of Green Creek Road near where the teen jumped from the minivan. Schultz testified that he later found a second unfired round in the same area.