upper waypoint

Lost Boy: Photos and Documents From Childhood to Murder and Arrest

Save ArticleSave Article
Failed to save article

Please try again

A young Marvin Mutch (left) with his younger sister Valerie.  (Courtesy of Marvin Mutch)

Chapter 2 of "The Trials of Marvin Mutch" podcast series examine's Marvin Mutch's childhood and how he was arrested at age 18 under suspicion for the murder of 13-year-old Cassie Riley.

Explore photos and documents related to the story below. Watch the video documentary here.

Mutch Family Childhood

A young Marvin Mutch (right) with his younger sister Valerie. (Courtesy of Marvin Mutch)


An article in the January 6, 1960 edition of the Oakland Tribune. George Ross' 'Home Town' column tells the story of 3-year-old Marvin Mutch at a San Jose police station.


7-year-old Marvin Mutch pictured with his sister Valerie and their mother in a photo dated May, 1964. (Courtesy of Marvin Mutch)


Cassie Riley, Murder and Investigation

Cassie Riley (right) pictured at age 13 with her siblings.
Cassie Riley (right) pictured at age 13 with her siblings. (Courtesy of Deborah Morgan)


The front page story on the murder of Cassie Riley in the September 26, 1974 edition of The Argus newspaper.


A front page article in the October 8, 1974 edition of The Argus newspaper, roughly two weeks after Riley's murder, seeks the community's help identifying a potential witness to the murder of Cassie Riley. Valerie Mutch, Marvin's 16-year-old sister, called Union City Police after seeing this story, believing her brother fit the description.



Read a synopsis of investigation that led Union City police to suspect Marvin Mutch for the murder of Cassie Riley below, from an affidavit requesting a search warrant for his home. The search warrant was requested and granted on Oct. 8, 1974.


Mutch's Arrest

October 10, 1974: The front page of The Argus newspaper announces the arrest of Marvin Mutch.

lower waypoint
next waypoint
How California and the EU Work Together to Regulate Artificial IntelligenceCarnaval San Francisco Celebrates 46 Years With Spectacular Mission Street ParadeCarnaval San Francisco 2024: From the Parade Route to Parking, Here's What to KnowArts and Crafts: 'Koko et Kiki'Eighth-Grader's Call to 911 About Teacher's Outburst Causes StirUCLA's Chancellor Escapes Harsh Criticism in House HearingCarnaval Putleco Brings a Oaxacan Festival of Colors to the Bay AreaInheriting a Home in California? Here's What You Need to KnowBlowing the Whistle on Medical ResearchAcademic Workers' Strike Will Roll On as UC's Request for Court Order Is Denied