SANTA CRUZ -- A 41-year-old man died of an apparent suicide Sunday morning in County Jail, the Sheriff's Office reported.

The unidentified man was found hanging in a cell about 11:20 a.m. and declared dead a few moments later, Lt Fred Plageman said.

He was found during an hourly check and had appeared fine earlier and had eaten breakfast and taken medication, he said.

Plageman said the inmate was housed alone due to statements he made about not getting along with others, not because he seemed depressed or suicidal.

Jail staff did all they could to revive him, he said.

"It looks like the County Jail staff did all the right things," Plageman said. "It's just terrible; it's hard on everybody."

Jail visits had to be canceled for the day, he said.

Corrections officials had not reached the man's family and did not identify him, describing him only as a 41-year-old white male.

Sheriff's deputies had arrested him Friday in the Mid-County area on suspicion of making criminal threats, Plageman said.

He was taken to Dominican Hospital for a pre-existing medical condition, and then cleared for jail, he said.

Three people died while in custody at County Jail on Water Street last year.

Brant Monnett, 47, died in jail Nov. 20, authorities said. Monnett was recovering from drug use and was in a detoxification cell.

Rick Prichard, 59, died Oct. 6 from cardiac problems while awaiting processing in jail. He had been arrested on suspicion of driving while intoxicated.

Christy Sanders, 27, died in jail Aug. 25. Sanders died due to several medical issues, including a liver problems, Hepatitis C and lung conditions attributed to intravenous heroin abuse, according to the Santa Cruz County Sheriff Coroner's Office.

Follow Sentinel reporter Cathy Kelly on Twitter at Twitter.com/cathykelly9