OGDEN -- The case agent for a drug raid in Ogden that left one officer dead and five others wounded is set to testify in a second day of preliminary hearings.
Prosecutors say Roy officer Jason Vanderwarf will lead off witnesses early Thursday.
Second District Judge Noel S. Hyde is holding the hearings to determine if Matthew David Stewart should be held for trial on charges including capital murder and marijuana cultivation.
Vanderwarf was the officer who knocked on Stewart's door in January and announced, "Police, search warrant!"
His police chief has called him a hero for pulling wounded colleagues out of the house despite taking a shot to the hip.
Stewart's ex-girlfriend also is expected to make an appearance during hearings that could last three or more days. The woman, who has yet to be identified, tipped authorities to allegations Stewart had been growing pot in his basement for years, prosecutors and defense lawyers said.
One prosecutor referred to her Wednesday as a confidential source who also claimed Stewart kept pounds of cured pot in his freezer.
It wasn't clear if the woman would take the stand Thursday or Friday as proceedings drag on. They got off to a slow start Wednesday with testimony from only three of as many as 17 witnesses for the prosecution and defense. Hyde said he was extending hearing hours into full days after originally planning to end daily proceedings by early afternoon.