Comic Title: Detective Comics #276
Publisher: DC (National Comics Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: February 1960
On Sale Date: December 29, 1959 Copyright Date December 29, 1959
Source: Library of Congress, Periodicals 1960

Frequency: Monthly
Cover Price: $0.10
Page Count: 32
Editor: Jack Schiff

Title: "The Crimes of John Jones"
Pages: 6

Feature(s):
Martian Manhunter (of Earth-1)

Artist: Joe Certa

Reprinted In:
Showcase Presents:Martian Manhunter Vol. 1 TPB (2007)

Feature Character(s)

• Martian Manhunter (last appearance in Brave and the Bold #28; next appearance in Detective Comics #277)

Supporting Character(s)

• Captain Harding (last appearance in Brave and the Bold #28; next appearance in Detective Comics #277)

Villain(s)

• "Big Boy" Benson and his mob (no further appearances)

Synopsis:
While chasing the "Big Boy" Benson mob, the Martian Manhunter is struck with a bout of amnesia. A cosmic cloud passing between Mars and Earth may be the cause. The crooks use the Manhunter’s amnesia to help them steal. He even allows them to photograph his secret identity.

The crooks lead the Manhunter to their boss’ hide-out where Manhunter’s amnesia seems to pass. He captures the Benson and his gang then returns the stolen items. He may have been faking the amnesia to be led to the boss. The photo of his secret identity is not John Jones since he apparently forgot what his human guise looked like.