MADISON, Wis. -- Morgan Geyser, who in 2014 stabbed a friend 19 times to appease the fictional character "Slender Man," was located Sunday night after she allegedly cut off her Department of Corrections monitoring bracelet and left a Wisconsin group home where she had been a resident, authorities said.

Geyser was taken into custody in Posen, Illinois, police confirmed to ABC News.

Before being located, Geyser was last seen in Madison around 8 p.m. on Saturday with an adult acquaintance, police said in a statement posted on social media, which included a recent surveillance image of Geyser.

Geyser was found Sunday night at a Thornton's truck stop with another person, according to Posen Police, who said the pair took a bus to Posen, and were both taken into custody.

Posen is about 25

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