Suspect who sent suspicious powder to Jewish community centers arrested

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Jeffrey Klinkel was arrested Thursday May 7, 2015 for sending suspicious letters containing white powder.

BOULDER COUNTY, Colo. — A male suspect who sent envelopes containing suspicious white powder to Jewish community centers was arrested Thursday.

Sheriff’s detectives and Boulder police arrested Jeffrey Klinkel, 32, for two counts of felony menacing, two counts of explosive hoax and two counts of interference with a school facility, according to Boulder police.

The incident occurred on April 6, when the Jewish Community Center located at 3800 Kalmia Avenue and Congregation Har HaShem located at 3950 Baseline Road both received letters containing white powdery substances, police say. No one was injured in the incidents.

A joint investigation with the FBI and Boulder Police Department started soon afterwards. The powdery substance in the letters was analyzed by the Colorado Department of Health and the contents were determined to be corn starch and/or white flour.

Forensic evidence led to Klinkel’s involvement and subsequent arrest. He is currently being held in the Boulder County Jail under a $10,000 bond.

The joint investigation is still continuing.

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