The problem for the prosecution in the murder trial of 41-year-old Robert Nelson of Anson has been a gross lack of physical evidence. Friday, testimony was halted in the murder trial so state police detectives could try and find some more. “This morning there were some evidentiary issues that arose and it has taken us some time to resolve. Those issues need to be resolved before the case can continue,” Judge John Nivison said. “I anticipate issues will be resolved as of Monday morning.”Judge Nivison granted the prosecution a continuance until Monday so state police detectives can search a gravel pit in the Kingfield area for a slug they think will match the slug taken from the victim during an autopsy. “They got information that a gun was fired on that location and a bullet may match to the one taken from his head,” defense attorney John Alsop told reporters outside the courtroom.Before granting the continuance, two witnesses were allowed to testify, although out of order. The defense called Cathy Sleeper of Anson. She testified that on the afternoon of the murder she saw a white car parked on the Town Farm Road along with Everett Cameron’s pickup truck the afternoon Cameron was shot.Her husband, Matthew Sleeper, also took the stand Friday but he testified for the prosecution. Matthew Sleeper testified he saw the white car, Cameron’s truck, and the defendant’s two-tone Dodge Intrepid parked on the Town Farm Road.Family members of the victim Everett Cameron testified earlier this week that Cameron was selling his prescription Oxycodone medication to friends and family members. One of his customers was the defendant Robert Nelson. According to testimony given earlier in the week, Cameron often engaged in drug deals in the same spot on the Town Farm Road where he was gunned down.Nelson has admitted to meeting with Cameron the afternoon he was murdered, but says Cameron was alive and well when they parted company. With no murder weapon, no DNA evidence, and no confession, the prosecution has been fighting an uphill battle from the beginning. Prosecutors are relying on circumstantial evidence to convict him. If Nelson is convicted he faces 25 years to life behind bars. Nelson waived his right to a jury trial, opting instead to have Judge Nivison hear the case.