Police have not specified a motive for the shootings.
Smith, 29, and Ashton, 31, are charged with aggravated murder and attempted aggravated murder. They could face the death penalty.
Smith has hired St. George defense attorney Gary Pendleton to represent him.
Ashton will also be represented by Douglas Terry, assigned by Shumate as co-counsel. Both lawyers are qualified to try capital murder cases.
The judge also approved a request by Ashton's attorneys for money for a private investigator, but held off on approving funds for a mitigation expert until the Washington County Attorney's Office has had a chance to study the motion. Terry said a mitigation expert would be used during the sentencing phase of the case to determine if there are extenuating circumstances in Ashton's life that should be taken into consideration and perhaps lessen the severity of his sentence.
Cramer said prosecutors have 60 days after an arraignment to determine if they will seek the death penalty.