Court papers say the pain inflicted on the girl was "the equivalent of that produced by torture."
The suspect, Stetson G. Tedder, 26, of Lynnwood was booked into the Snohomish County jail Thursday for investigation of second-degree assault on a child and unlawful imprisonment. He was released Saturday after making bail.
The case came to light when the little girl's grandmother noticed red dots all over her body and asked the girl what had happened.
The girl told her grandmother that Tedder had hog-tied her and shot her with a pellet gun, and that she had cried from the pain, court documents say.
The grandmother took the little girl to Providence Hospital in Everett, where she was examined. Her grandmother and hospital staff counted more than 36 marks on the little girl's body.
The girl told detectives that Tedder became angry when she woke him up early, so he shot her with the pellet gun, according to documents filed in Snohomish County Superior Court.
On another occasion, the girl said, Tedder tied her up after her room was messy and made her pick up her room with her teeth, court documents say.
An investigation discovered that Tedder owns an Airsoft AR-15 style rifle, and it's believed this was used to fire pellets at the girl.
According to court records, the girl was bound by the wrists and ankles as a form of punishment. While bound, she was shot multiple times with the pellet gun.
"Stetson knowingly inflicted bodily harm which by design caused pain as to the equivalent of that used by torture," a detective wrote in his probable cause report.
Court records also say Tedder admitted to detectives that he used duct tape to hog-tie the little girl as a form of punishment for up to 30 minutes.
"The suspect did admit to investigators he would use the hog tying, whether though zip ties, or duct tape as a form of punishment," said said Snohomish County sheriff's spokeswoman Shari Ireton
The girl told police that her mom left the house when Tedder was shooting at her with the gun because "she doesn't want to hear her cry," court documents say.
The girl has since been taken into protective custody. Ireton said the 4-year old might not be the only victim in the case.
"I believe the sister had also been punished this way as well, and during the course of the investigation the victim reported her sister had been shot at with a BB gun by the suspect for waking him up too early," she said.