Over the next few days, the police in Delhi detained Mukesh Singh, Mr. Gupta, and the juvenile.

WSJ: In Delhi Rape, New Details About the Accused

Manohar Lal Sharma, who was selected to represent Mukesh Singh, 22, had said his client was forced to confess and would plead not guilty.

BBC: Delhi gang rape suspects 'tortured to force confession'

L. Sharma, the lawyer for another of the accused men, Mukesh Singh, has said his client wasn't even in Delhi on Dec. 16 and claimed that Mr. Singh has been subjected to "third degree torture" in jail.

WSJ: Trial Court Proceedings to Begin in Delhi Rape Case