A 48-year-old man, in custody since Dec. 1, died Friday in Sacramento County Main Jail, according to a press release from Sheriff's Department officials.
The dead man's name was not released, pending notification of next of kin.
He was found unresponsive in his cell shortly before 10 p.m. when his cellmate returned from recreation time, officials reported.
The man was pronounced dead at 10:22 p.m.
The inmate had been arrested for outstanding warrants.