A Montgomery County woman dubbed "Jihad Jane" faces a life sentence in December after admitting she had plotted to kill a Swedish artist who had offended Muslims.

Colleen LaRose, of Pennsburg, has been in custody since she returned from Ireland to surrender to the FBI in 2009.

LaRose's arrest was kept secret until another U.S. woman and six others were rounded up in Ireland months later. A Maryland teen has since been charged in the case.

According to court papers, the FBI became interested in LaRose, 48, after she called herself "Jihad Jane" in a YouTube video and said she was "desperate" to help Muslims.

LaRose has since pleaded guilty to conspiracy to murder a foreign target and support terrorists and lying to the FBI. Her sentencing is set for Dec. 19 in Philadelphia.

LaRose's lawyer did not immediately return a message.