May Callahan, who now lives in Scarborough, pleaded guilty to one count each of felony terrorizing and misdemeanor terrorizing during the juvenile justice proceeding at the Penobscot Judicial Center, according to Assistant District Attorney James Aucoin. The Bangor Daily News is naming Callahan because she pleaded guilty to a felony.

Callahan received a suspended sentence but no jail time or fines.

The charges stem from dozens of threatening, anonymous messages that Callahan posted last fall on the Internet directed at 16-year-old Lexi Henkel, a former schoolmate who since has transferred to Old Town High School. The Bangor Daily News is naming Henkel because she has spoken publicly about the case.

Callahan was arrested and charged with terrorizing and harassment by electronic communication on Nov. 1 of last year by Veazie police Sgt. Keith Emery. At that time, she was released to her mother on the conditions that she have no contact with her victim, attend school and obey the rules of her home. The harassment charge was dropped in the plea negotiation.

In addition, Callahan was prohibited from using the Internet except for school purposes and was required to be supervised while doing so.

In December, however, the Penobscot County district atorney’s office issued a warrant after Callahan violated the terms of her release by making contact with Henkel via Instagram, a program and social network that allows users to share photos on a variety of other networking services, including Twitter and Facebook.

Under the terms of her deferred disposition, Callahan is allowed to use her cellphone for talking and texting but remains barred from using social media until her caseworker deems it appropriate.

The case has been continued for disposition until December, Aucoin said. If Callahan, who remains free, abides by the terms accepted by Judge Bruce Jordan, the felony terrorizing charge will be withdrawn but the misdemeanor charge will stand and she will remain on probation until her 18th birthday next March, Aucoin said.