Police: Teenage girls use knife to force autistic boy to perform sex acts
March 13, 2014 -- Updated 1129 GMT (1929 HKT)
Lauren A. Bush, 17, was arrested and charged as an adult.
- One girl, 17, charged as an adult. Other girl is 15.
- They face assault, pornography charges
- Sheriff's spokeswoman says sex acts were recorded on cell phones
(CNN) -- Two Maryland teenage girls were charged this week with assaulting an autistic boy and recording him on their cell phones performing sex acts, including some with animals, the St. Mary County Sheriff's Department said Wednesday.
Authorities said the two girls, ages 17 and 15, admitted to police that they assaulted the boy, 16, with a knife on "multiple occasions."
"His parents refer to him as (having) been diagnosed autistic," said Sgt. Cara Grumbles, a spokeswoman for the sheriff's office. "Some of the sexual acts involved animals. It's awful."
A news release from the department said the girls also kicked the boy in the groin and dragged him by his hair. They also got him to walk onto a partially frozen pond. When the boy fell through several times, they made him get out each time by himself, police said.
What it feels like to be autistic
Detectives found videos on the girls' cell phones.
Prosecutors charged the 17-year-old, Lauren A. Bush, as an adult. The 15-year-old was charged as a juvenile. Police didn't release her name.
Each was charged with two counts of first-degree assault, two counts of second-degree assault, child pornography and false imprisonment.
Video of autistic child being beaten provokes Internet outrage
Why autistic kids make easy targets for school bullies
Florida: Mom kept autistic son in 'dungeon-like conditions'
Mother says her autistic son was put in bag as discipline at school
CNN's John Newsome contributed to this report.
Today's five most popular stories
Part of complete coverage on
October 24, 2014 -- Updated 0242 GMT (1042 HKT)
Successful launch of lunar orbiter, seen as a precursor for a planned mission to the surface of the moon, marks significant advance for the country's space program.
October 23, 2014 -- Updated 1915 GMT (0315 HKT)
Cpl. Nathan Cirillo, shot while standing guard at Ottawa's National War Memorial, was known for his easygoing manner and smile.
October 22, 2014 -- Updated 2006 GMT (0406 HKT)
Non-stop chatter about actress' appearance is nasty, cruel, hurtful, invasive and sexist.
October 23, 2014 -- Updated 2208 GMT (0608 HKT)
CEO's 30-min Putonghua chat is the perfect charm offensive for Facebook's last untapped market.
October 24, 2014 -- Updated 0345 GMT (1145 HKT)
Chinese leaders want less odd architecture built in the country.
October 22, 2014 -- Updated 2058 GMT (0458 HKT)
Air New Zealand's new 'Hobbit' safety video stars Peter Jackson, Elijah Wood, elves and orcs.
October 23, 2014 -- Updated 1414 GMT (2214 HKT)
A 15-year-old pregnant girl is rescued from slavery, only to be charged with having sex outside of marriage, shocked rights activists say -- a charge potentially punishable by death.
October 22, 2014 -- Updated 0333 GMT (1133 HKT)
After sushi and ramen, beef is on the list of must-eats for many visitors to Japan.
October 20, 2014 -- Updated 1607 GMT (0007 HKT)
Airports judged on comfort, conveniences, cleanliness and customer service.
October 22, 2014 -- Updated 1748 GMT (0148 HKT)
Scientists use CT scans to recreate a life-size image of the ancient king.
October 22, 2014 -- Updated 0959 GMT (1759 HKT)
Despite billions spent on eradicating poppy production, Afghan farmers are growing bumper crops, a U.S. government report says.
October 24, 2014 -- Updated 1021 GMT (1821 HKT)
Each day, CNN brings you an image capturing a moment to remember, defining the present in our changing world.
Browse through images from CNN teams around the world that you don't always see on news reports.