SALEM A request has been filed with the Oregon Supreme Court to halt the scheduled execution of convicted killer Gary Haugen.

The petition for writ of mandamus requested that judge Joseph Guimond vacate the death warrant and conduct a hearing to determine whether Haugen is mentally competent to face execution.

A competency hearing has not occurred in this case. Instead, Haugen was allowed to waive counsel and then he signed a death warrant, which he requested himself.

Background: Death row inmate Haugen to die in August

The writ of mandamus petition was filed Monday by the Oregon Capital Resource Center in Portland with support from Oregonians for Alternatives to the Death Penalty.

Pressure has also been mounting for Oregon Governor John Kitzhaber to halt the state s first execution in 14 years.

In early May, a judge granted Haugen's request to fast-track his execution, setting a date for August 16.

More:History of executions in Oregon

The Oregon Capital Resource Centercoordinates legal representation in death penalty cases in Oregon. Oregonians for Alternatives to the Death Penaltyis anon-profitthat doesresearch and education on the effectiveness of the death penalty and its alternatives.

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