DUCHESNE — A judge has ordered a third competency exam for a Tabiona man accused of firing arrows with razor-sharp tips at Duchesne County sheriff's deputies during a standoff.

Judge Lyle Anderson's order was issued Thursday after concerns were raised by the prosecution and the defense about two prior competency exams performed on Michael L. Weaver.

The two examiners who met with Weaver concluded that he is competent to stand trial, deputy Duchesne County attorney Grant Charles said. But there were conflicting statements within the examiners' reports, the prosecutor said, including questions about whether Weaver is currently taking the proper medication to address his mental health issues.

"One of the reports also said he was not capable of testifying (in his own defense), but said he was still competent," Charles said.

To be deemed competent to stand trial, an individual must be able to understand the charges against them, and must be able to aid in their own defense.

Weaver, 47, was already accused of firing a crossbow at a neighbor when sheriff's deputies responded to his home July 7 after receiving a complaint that he was making threatening phone calls to a neighbor.

Weaver is accused of threatening the first responding deputy and then brandishing a knife. When deputies tried to negotiate with Weaver during what became a three-hour standoff, he began firing a bow at them through a broken window in the trailer, according to charging documents.

None of the arrows hit the deputies, but one glanced off a patrol car. The arrows were aluminum and some were tipped with razor-sharp broadhead points, investigators said.

He was eventually arrested and taken to a hospital. While there, he tried to disarm a deputy and also pulled out an IV and sprayed two deputies with blood, court records state.

Weaver is charged with four counts of attempted aggravated murder, a first-degree felony; disarming a police officer, a first-degree felony; three counts of making terroristic threats, a second-degree felony; and two counts of propelling a substance at a police officer, a third-degree felony.

Those charges come in addition to an aggravated assault charge that was filed against Weaver on July 2 for allegedly firing two crossbow bolts at a neighbor.

Email: gliesik@deseretnews.com

Twitter: GeoffLiesik