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Testimony continues today in the murder trial of Mark Jensen.

One of Jensen's former co-workers testified on Tuesday that Jensen told him about websites with information about killing someone without making it detectable.

"Mark told me that if you wanted to get rid of your wife, you could go to websites on how to kill your wife, that you could do things that weren't detectable," said Edward Klug on the stand.

Jensen is charged with poisoning his wife, Julie, with anti-freeze in 1998.

Klug said Jensen told him about using anti-freeze and benadryll to kill Julie, But Klug didn't come forward with the information until almost eigbt years later, saying he was afraid for what Jensen would do to him.

A medical examiner also testified that Julie died from suffocation, and prosecutors allege Mark sat on her when she wouldn't die quickly enough.