PORTLAND -- The landscaper who police believe Terri Horman approached in an alleged murder-for-hire plot against her estranged husband Kaine Horman was scheduled for a deposition Wednesday. But the interview was later canceled.

Terri Horman's defense lawyer objected to the deposition and requested an emergency hearing to prevent Rudy Sanchez-Estrada from being questioned. No court hearing has been scheduled to discuss the matter.

According to court papers obtained by KGW, Kaine's lawyers wanted to question Sanchez-Estrada as part of the ongoing divorce proceedings with Terri Moulton Horman.

Related: Hormans battle it out in divorce court

Kaine filed for divorce and a restraining order against Terri in late June, 2010. He said police believe his wife had approached the family landscaper offering money if he would killKaine.

Terri has not been charged in the case.

Kaine's son, Kyron Horman, went missing from Skyline Elementary School on June 4, 2010, and investigators said at the time that Terri was the last person to see him before the disappearance. She has also been a focus of the missing person investigation, but never named as a suspect.

Complete coverage: The Search for Kyron Horman

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