263 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Nicolas Sonderegger Missing Person Case

Last seen in Salton City, California on Sep 09, 2018

Victim Details

Created

Mar 03, 2020

Case Added

Mar 04, 2020

Firstname

Nicolas

Lastname

Sonderegger

Current Age

34

Age At Disappearance

27

Height

70 inches

Weight

185 lbs

Ethnicity

White / Caucasian

Gender

Male

Last Seen

Sep 09, 2018

City

Salton City

State

California

County

Imperial County

Zip Code

92274

Tribal Land

No

Agency ID

76902

Agency Name

Imperial County Sheriff's Office

Agency City

El Centro

Agency State

California

Agency County

Imperial County

Agency Zip Code

92243

Agency Contact

Agency Address

328 Applestill Road, California

Agency Phone

4422652105

Agency Jurisdiction

County

Agency Type

Law Enforcement

Agency Website

http://www.icso.org/

Agency Case #

1809-0961

Agency Report Date

2018-09-10

Primary Agency

Imperial County Sheriff's Office

CaseContributors

na

Hair Color

Brown

Left Eye Color

Brown

Right Eye Color

Brown

Last Updated

07/12/2026

Area Last Seen:

Case Description

Any updates on this case? Let us know!

Nicolas Sonderegger, a 27-year-old man, was last seen on September 9, 2018, in Salton City, California. He disappeared under mysterious circumstances, leaving behind his wallet and vehicle at his residence. Nicolas, also known for his YouTube channel under the alias "SunSpeik," had been living with his friend Austin at the time of his disappearance. On the night before he went missing, the two heard a scream outside their home. Austin fell asleep, and by morning, Nicolas was gone.
...

MEMBER ACCESS

Continue reading the complete case summary

Unlock the full case narrative for Nicolas Sonderegger, all available source links, additional videos, and member discussions.

Unlock Full Case Access — $3.97/month

Cancel anytime.
Already a member? Log in

Last Seen: Sep 09, 2018

Links to Additional Sources (7)

See any mistakes? Let us know!

‼STILL MISSING‼ Nicolas Daniel... - Attempt to Locate | Facebook">‼STILL MISSING‼ Nicolas Daniel... - Attempt to Locate | Facebook

Missing Person / NamUs #MP65874

MEMBER ACCESS

Unlock 5 additional sources

View the complete collection of available reporting and reference links for this case.

View All Case Sources — $3.97/month

Cancel anytime.
Already a member? Log in

Forum Posts (3)

Hey everyone, I've been following the case of Nicolas Sonderegger and something's been bothering me ... ...Read More
10/09/2024

Has anyone else looked into Nicolas’ YouTube activity right before he went missing? I did some dig... ...Read More
05/29/2023

Given the intrigue surrounding Nicolas Sonderegger’s disappearance, one detail that keeps nagging ... ...Read More
01/08/2023

MEMBER ACCESS

Join the discussion for Nicolas Sonderegger

Read full forum posts and contribute to this case discussion.

Unlock forum access — $3.97/month
Already a member? Log in

Other Missing Cases from Salton City, California

Charles Denny

Missing: Sep 30, 1981
Charles Thomas Denny, aged 35, was last seen on September 30, 1981, in Salton City, California. Acco ...Read More

Everett Smith

Missing: Aug 12, 1982
On a summer day in 1982, 47-year-old Everett Vincent Smith was seen for the last time in Salton City ...Read More

Vicente Gaona

Missing: Feb 02, 2000
Vicente Gaona, age 20, was last seen on February 2, 2000, near Salton City, California. His disappea ...Read More