The woman known as "Jihad Jane" quietly stood before a federal judge in Philadelphia Tuesay and admitted plotting to kill a Swedish cartoonist and to recruiting people to wage terrorist attacks.

Colleen LaRose pled guilty to conspiracy to support terrorists, conspiracy to kill in a foreign country, lying to investigators and attempted identity theft. She faces a potential life sentence.

According to a memorandum outlining the plea change, prosecutors said that their evidence proved LaRose "worked obsessively on her computer to communicate with, recruit and incite other jihadists." She then agreed to try to kill Swedish cartoonists Lars Vilks, who drew a cartoon of the Prophet Muhammad's head on the body of a dog.

"LaRose and her co-conspirators expressed their desires to become martyrs for Allah," the memorandum said. Her indictment cites an email in which she says she will make killing Vilks "my goal till i achieve it or die trying." She traveled in preparation for an attack and even tried to contact the cartoonist, the plea memorandum said.

Jamie Paulin-Ramirez remains charged in the case and has entered a not guilty plea. The women hoped to use their Western appearances and passports to avoid detection as they plotted terrorism and recruited jihadists.