Law Enforcement Calls Shooting Threats a Hoax, While Another Student is Arrested

Law Enforcement Calls Shooting Threats a Hoax, While Another Student is Arrested

RANCHO CUCAMONGA – Deputies interviewed over two dozen students when threats of shootings were spilling out at three area high school campuses on Monday. Investigators determined the threats were a hoax. However, another student was arrested for posting a photo of himself with a gun.

Some 27 people, mostly students, were interviewed when Twitter threats of shootings surfaced involving the high school campuses of Etiwanda, Alta Loma and Los Osos High Schools. Warnings began circulating through social media outlets between Sunday and Monday.

Investigators said the tweets came after last week’s investigation of a Lone Hill Middle School student who was targeted in San Dimas, located about 20 miles from Rancho Cucamonga. That Instagram posting turned out to be a non-event, said officials.

The newest threats were considered seriously by both school officials and law enforcement, which placed a deputy at Alta Loma High, in addition to campus security personnel. A law enforcement official confirmed the newest threats were a reaction from last week’s incident when two girls were carrying on a dispute. Both girls were contacted and advised of possible consequences if the posts continued. A sheriff’s office spokesman said that Deputy Miranda Young was dispatched to investigate the social media tweets, which also included Facebook posts. Young interviewed approximately 27 students before she narrowed it down to the two female students, who were not identified due to their age.

An arrest was made at Alta Loma High School

An arrest was made at Alta Loma High School

Meanwhile, an Alta Loma High School student, Andrew Riccardi, 18 and presumably a senior, posted a picture of himself with a gun on a Tweet that read “Well mom said I had to go to school better pop the trunk first” according to a report from ABC7 News. He was arrested on campus in front of other students. He admitted to posting the photo, but said the gun was a replica. A search of his home revealed that his father did have guns in safes that were not accessible to Riccardi, but they did find nun-chuck weapons in his room, and two large fixed bade knives in his car, which he had driven to school. Riccardi was charged with threats of violence.

School officials were aware of the posts, especially when a number of students said they would not be attending school on Monday. It is possible Riccardi’s post was in reaction to the other posts and rumors circulating.

Read more:

ABC7: Rancho Cucamonga Student Arrested After Posting Threatening Tweets

CrimeVoice staff contributed to this story

Law Enforcement Calls Shooting Threats a Hoax, While Another Student is Arrested was last modified: April 21st, 2015 by admin
Categories: San Bernardino

About Author

Lee Brown

Obrey "Lee" Brown has worked for 10 newspapers and magazines in the Bay Area, central and southern California. In 2005, he wrote "A Citrus Test: Football in Black & White." He can be reached at


  1. Lisa Murdy
    Lisa Murdy 21 April, 2015, 16:41

    I’m a parent of two Alta Loma High Schools students. I received a robo call from Principle Cronin Monday Monday morning while discussing the situation with my sons. I was ready to keep them out of school but felt eased by his call. When my son found out his girl friend would be in school he did not want her on campus alone. In turn both my sons went to school Monday. Then one ALHS student was arrested for weapons on campus and two LOHS students were arrested for conspiracy to commit murder.
    I would call that a credible threat. As a parent I feel mislead. In the future regardless of administrations assurances I will keep my sons out for any such threat.

    Reply this comment
    • Christy Skinner
      Christy Skinner 22 April, 2015, 08:13

      I’m also a parent of an Alta Loma High School student and I absolutely agree. After seeing it on the news, my son actually was staying home. However, after hearing the message from Principle Cronin, my husband actually went back, picked him up, and dropped him off there. Not only did he not feel safe, I felt even worse after hearing what actually transpired.

      It’s a terrible feeling as a parent seeing your son’s high school on t.v. for a possible shooting threat, it’s even worse not being able to rely on the school for presenting the facts and being honest with what is happening, regardless of the impact it may have on attendance. Our children are worth more than a few state $$$!

      Reply this comment
  2. robert
    robert 24 April, 2015, 21:39

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