Los Angeles County Sheriff’s Department Asks Public Help Locating At-Risk Missing Person Alyssa Miller — Missing La Puente
Alyssa Isabella Miller, a 20-year-old woman identified as having diminished mental capacity, has been reported missing from La Puente since Tuesday, February 10, 2026. Authorities from the Los Angeles County Sheriff’s Department are urging the public for assistance.
Key takeaways
- Name: Alyssa Isabella Miller, age 20; described as a White female, 5’4″, 180 lbs., brown hair and brown eyes.
- Last seen: Near the 16100 block of Harvestmoon Street, La Puente, California, on Tuesday, Feb. 10, 2026; wearing a white T-shirt and blue jeans.
- Medical concern: Has diminished mental capacity and a condition that requires regular medication — search treated as urgent.
- Tips: Call the Los Angeles County Sheriff’s Missing Persons Detail at (323) 890-5500 or contact Crime Stoppers for anonymous tips.
What officials say and what is known
The Los Angeles County Sheriff’s Department, Missing Persons Detail, has publicly appealed for help locating Alyssa Isabella Miller, who has not been seen since Feb. 10, according to both the department and family statements. Authorities describe Miller as a 20-year-old White female, approximately 5 feet 4 inches tall and weighing about 180 pounds, with brown hair and brown eyes. She was last observed in the 16100 block of Harvestmoon Street in La Puente wearing a white T-shirt and blue jeans.
“The medical need is a key reason the sheriff’s department is treating the disappearance as an urgent public-safety matter,” officials and family members said.
More details were reported by MyNewsLA, which first published the department’s public appeal for assistance.
Reported timeline and possible travel
Last seen: Tuesday, Feb. 10, 2026. Family members reported the last contact — a call or message — on Feb. 14, 2026, at approximately 12:08 p.m. Investigators have not released further details about that contact.
Sheriff’s officials indicated Miller may have been headed to Buffalo, New York, though they have not confirmed how she might have traveled or whether she boarded a plane, bus, or other long-distance transport. The department continues to collect tips to clarify possible movements.
What law enforcement is asking the public to do
Anyone who may have seen Miller or who has information about her movements since Feb. 10 is asked to call the Los Angeles County Sheriff’s Department, Missing Persons Detail, at (323) 890-5500. To remain anonymous, contact Crime Stoppers at (800) 222-TIPS (8477), use the “P3 Tips” mobile app, or submit information via the Crime Stoppers website.
Do not post unverified claims on social media; authorities ask that credible information be forwarded through official channels so investigators can act quickly.
Why the case is being treated as urgent
Miller’s diminished mental capacity and the need for regular medication elevate the risk to her well-being. Missing-person cases involving vulnerable adults carry a higher potential for harm if medical treatment is missed or if the person becomes disoriented. Family members have expressed growing concern, prompting the sheriff’s department to enlist community assistance.
What investigators have not released
As of the department’s public appeal, investigators have not disclosed information about suspected foul play, specific investigative leads, surveillance footage, or whether Miller’s cell phone or financial accounts show activity. Authorities also have not confirmed travel method (air, bus, car) or any verified sightings outside La Puente.
How the community can help — practical steps
- Report tips: Call (323) 890-5500 or use Crime Stoppers for anonymous reporting.
- Check transportation hubs: Monitor bus stations, train stations, Greyhound routes, and nearby airports for any potential sightings.
- Review footage: Look at dashcams, home security, and trail cameras for anyone matching Miller’s description and forward findings to investigators.
- Share verified information: Circulate official photos and details through neighborhood groups and trusted channels while avoiding speculation.
- Safety first: If you see someone matching the description, call authorities rather than approaching if there are safety concerns.
Implications for Hesperia, California
Economic impact: A La Puente-centered search is not a direct economic threat to Hesperia, but expanded regional searches can draw volunteer time and local law enforcement resources. Businesses on travel routes could see small operational impacts if searches temporarily affect traffic patterns.
Political consequences: Missing-persons responses often resonate in local politics. Hesperia voters focused on public safety may urge visible support for search efforts and funding to strengthen interagency response capabilities.
Social and cultural effects: The case is likely to mobilize neighborhood-watch groups, faith-based organizations, and local media. Conservative communities that emphasize protecting the vulnerable may respond with volunteer searches, prayer, and disciplined sharing of verified information.
Practical applications for residents:
- Check dashcams and home cameras for possible sightings and report findings.
- If you work in transportation, hospitality, or healthcare, be alert for individuals matching the description and notify authorities.
- Encourage vulnerable relatives to carry updated identification, medical information, and emergency contact plans.
Report tips and protect privacy
If you have information about Alyssa Isabella Miller, call the Los Angeles County Sheriff’s Department, Missing Persons Detail, at (323) 890-5500. To remain anonymous, contact Crime Stoppers at (800) 222-TIPS (8477), use the P3 Tips app, or submit information on the Crime Stoppers website.
Authorities ask the public to avoid spreading unverified rumors and to forward credible information through official channels so investigators can follow up swiftly.
Source attribution and links
- MyNewsLA — Woman with diminished mental capacity missing from La Puente (Feb. 15, 2026)
- Crime Stoppers — anonymous tips and P3 Tips app information
- Los Angeles County Sheriff’s Department, Missing Persons Detail — contact: (323) 890-5500
