BILLINGS (AP) - A federal appeals court panel decided Monday it would not reconsider its decision dismissing two attorneys' efforts to keep convicted killer David Dawson alive.

Dawson, who has fought for two years to end all appeals and move toward having the sentence imposed on him in 1987 carried out, is scheduled to die Aug. 11. He would be the first person executed in Montana since 1998.

Dawson was convicted of killing three members of a family he took captive at a Billings motel. Police rescued a fourth member of that family, a daughter.

Last month, the three-judge panel that issued Monday's order ruled attorneys Kathryn Ross and Bill Hooks, whom Dawson has sought to fire, lacked standing to appeal on Dawson's behalf.

Ross and Hooks, in court papers seeking reconsideration of that decision, continued to raise questions about Dawson's request to end his appeals and be executed. Among other things, they have argued that years on death row partly influenced Dawson's decision.