Maricopa County Sheriff Joe Arpaio holds a news conference on the 16-year-old's arrest.
MESA, AZ (CBS5) -
Maricopa County Sheriff Joe Arpaio said a 16-year-old Mesa teen's plot to gun down classmates in her high school is unrelated to last Friday's deadly shooting at a Connecticut elementary school.
In a post on a transgender community YouTube channel, the girl alludes to the Sandy Hook Elementary School massacre, saying she planned her attack "well in advance" of Friday's shooting. The post, in part, reads, "I now literally have a plan of seriously hurting ... killing ... murdering people in my high school."
The post continued by saying, "I work at the high school as a student teacher basically ... which is why no one can find out about me somewhat accidentally planning to blow up the school. (and yes ... it would be super easy ...)"
The 16-year-old said she had thought about the killings for a while and had planned to "cut the wires to the security carts" on campus to slow down the response during an explosion and shoot people from the other side of a fence.
Arpaio said although this incident is not believed to be related to Connecticut, there are similarities.
Arpaio said the girl had three weapons at her home, as did the suspect who took his own life after killing 26 people.
Arpaio said both the girl and the Sandy Hook gunman had mental health issues. And in both cases, the plots were premeditated.
Arpaio said the 16-year-old was arrested Thursday in her Mesa home and is currently being charged as a juvenile for one count of computer tampering and one count of threatening and intimidating. The investigation is ongoing and more charges are possible, Arpaio said.
Thursday, May 23 2013 12:39 PM EDT2013-05-23 16:39:28 GMT
Dan Marco's son was murdered in 2010. (Source: CBS 5 News)
Only people who have lost a close loved one can understand the pain of Travis Alexander's family"My heart goes out to them, because I understand," says Dan Marco, who's son Zachary was murdered in 2010.ZacharyMore >
Only people who have lost a close loved one can understand the pain of Travis Alexander's family.More >
Thursday, May 23 2013 11:43 AM EDT2013-05-23 15:43:24 GMT
Fallen officer's daughter graduates from kindergarten
Hundreds of Phoenix police officers showed their support for a fallen colleague by attending his daughter's kindergarten graduation in Anthem on Wednesday. Officer Daryl Raetz was killed in the lineMore >
Tatum Raetz, 5, graduated from kindergarten in Anthem Wednesday and hundreds of uniformed Phoenix police officers were there to show their support for the family.More >
Thursday, May 23 2013 10:44 PM EDT2013-05-24 02:44:33 GMT
? CBS 5
Follow @JadiannCBS5, @reporterjmiguel and @elizabetherwin for updates from Jodi Arias murder trial in the death of her ex-boyfriend, Travis Alexander. [Text BREAKING to 23765 to get breaking news alertsMore >
Get live updates from CBS 5 News reporters during the trial of Jodi Arias, who was convicted of first-degree murder in the death of her ex-boyfriend, Travis Alexander.More >
Thursday, May 23 2013 11:55 AM EDT2013-05-23 15:55:08 GMT
(RNN) - Dozens of Cleveland restaurants have pledged to give the man who rescued three Ohio women from captivity, free burgers for life. Charles Ramsey, the guy who famously stopped eating his Big MacMore >
More than a dozen of Cleveland restaurants have pledged to give the man who rescued three Ohio women from captivity, free burgers for life.More >
Thursday, May 23 2013 8:00 AM EDT2013-05-23 12:00:17 GMT
A former flight instructor who taught foreign flight students at one of the Valley's pilot schools told CBS 5 Investigates the students often could barely speak English. "I'd say at least 50 percent ofMore >
A former flight instructor who taught foreign flight students at one of the Valley's pilot schools told CBS 5 Investigates the students often could barely speak English.More >
Thursday, May 23 2013 9:01 PM EDT2013-05-24 01:01:56 GMT
Jodi Arias (Source: CBS 5 News)
It is now in the hands of the 12 jurors to decide if Jodi Arias will live her life behind bars or if she'll be executed. The defense and prosecution gave their closing statement Tuesday afternoon andMore >
The judge has declared a mistrial in the penalty phase of the Jodi Arias trial. The jury announced late Thursday afternoon that they could not reach a unanimous decision on life or death for Arias.More >
Wednesday, May 22 2013 1:36 PM EDT2013-05-22 17:36:14 GMT
(Source: CBS 5 News)
Be the first to find out when the jury reaches a verdict in the Jodi Arias murder trial. She's accused of killing her ex-boyfriend, Travis Alexander, at his Mesa home in 2008. The jury is deliberatingMore >
Be the first to find out when the jury reaches a verdict in the sentencing phase of the Jodi Arias murder trial.More >