CBS: Three of five Fort Jackson suspects cleared in alleged attempt to poison water supply

Fort Jackson officials confirmed to WLTX Thursday night that the investigation started in December to look into "potential verbal threats against fellow soldiers."

Friday, CBS National Security Correspondent David Martin reported that the investigation began as a result of someone who claimed to have overheard other soldiers talking about poisoning the food. Martin has discovered that five soldiers were originally under investigation, but at least three have now been cleared.

Martin goes on to report that no arrests were made, although the group was brought in for questioning.

The Army Criminal Investigation Division, the group in charge of the investigation, told WLTX that, "we have not found any credible evidence to substantiate the allegations."