Walnut Creek Police have arrested an 18-year-old from Lathrop in connection with a threat made at Las Lomas High School on Friday, February 10, 2023.
Shortly after noon on Friday, Las Lomas High School staff reported they received a phone call threatening a shooting on campus. Walnut Creek Police responded, and had students and staff shelter in place while the campus was thoroughly searched for any threats. No weapons were found on campus, and the lockdown was lifted.
Once the campus was cleared, Walnut Creek Police detectives immediately began investigating possible leads as to who may be responsible for the threat. Detectives were able to identify Demoni Costello as the person allegedly responsible for the threat.
Detectives authored a warrant for Costello’s arrest for felony criminal threats and a misdemeanor for causing a false emergency report.
Costello was arrested today, February 16, and booked into jail at the Martinez Detention Facility, where he is being held on $27,000 bail.
Follow-up investigation is still being conducted to confirm there are no other people involved in this this threat; at this time, there is no additional information available.
Anyone with any information is asked to contact Walnut Creek Police Department at 925-943-5844 or call the Anonymous Tip Line at 925-943-5865.
12 comments
Taking wild guess here, not a member of Mensa.
.
An what will our DA do with this guy ? ? ? ?
There must be some connection between someone in Lathrop to Las Lomas? What is it, praytell?
Good job LE! … now Becton – more than a wrist slap -it’s a felony! …. thanks for the name Claycord … he’s from Lathrop, CA… anybody have pics?
Only $27,000 bail? With all the school shootings happening, bail should be way higher. What a joke. DA won’t even file charges on this guy.
His folks can bail him out with a Visa card. Hopefully they won’t and will take this seriously enough to get him the help he needs.
You spelled EBT card incorrectly.
Touché!
Play stupid games, get stupid prizes.
I want to know who would name their kid “Demoni” ?
it’s actually not an uncommon name
Boil Him !
It’s a well know fact that people from the agricultural bread basket of Ca (farming communities)come over the hill to get money from rich Bay Area folks by selling drugs, pulling construction scams, etc. Maybe Demoni will as rebuffed by students so he wanted to exact revenge on the school.
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