DHS opened a case on Kyron's stepmom years ago

DHS opened a case on Kyron's stepmom years ago »Play Video

PORTLAND, Ore. – In the wake of the Sunday morning news of an alleged murder-for-hire plot claiming Terri Horman tried to have her soon-to-be-ex-husband Kaine killed, authorities now confirm detectives shared this information with Kaine Horman just before he filed for divorce, moved out of their home and took their daughter with him.

A landscaper who worked for the Horman family claims the stepmother to missing boy Kyron Horman offered him a "large sum of money" to do the deed. He alleges she approached him about six to seven months before Kyron disappeared.

The landscaper has not been identified. We have called Terri's newly-hired attorney, Stephen Houze. He has yet to return our calls.

On Sunday KATU also received our first confirmation that Terri Horman has been the subject of a prior investigation regarding her parenting.

A source confirmed late Sunday afternoon that the Oregon Department of Human Services opened a case on Terri Horman following a 2005 arrest and charge of driving under the influence. Her biological son, who was 11 at the time, was in the car when his mother was arrested. As such, Horman also was convicted of reckless endangerment of that son.

Horman pleaded guilty in that incident. She had her license suspended for a month and a half, and served out a 12-month probation for those convictions.

We called the Department of Human Services to try to get answers from the agency's case file. Instead, DHS workers referred us to investigators working Kyron Horman's disappearance case.

Meanwhile, authorities involved in the search for the missing Skyline second grader this weekend are asking those who think they see Kyron to call 9-1-1 immediately. They do have a tipline for information about Kyron's disappearance, at 503-261-2847, and will continue to operate that line. However, operators there say it can take some time to get through all the tips. Those with immediate sightings then should call emergency dispatch.

There is a reward of up to $25,000 to help find this missing Northeast Portland 7 year old.