GALLUP — Crime scene investigators on Monday said Dr. James Nordstrom was laying on the ground when he was beaten to death with a pool cue stick.

The investigators also said the pattern on the bottom of John Mayes' shoes was found throughout Dr. James Nordstrom's property, including where his body was found. And the doctor's blood was found on Mayes and his clothes when he was arrested June 10, 2011.

Mayes, the 20-year-old adopted son of Farmington City Manager Rob Mayes, is on trial in Gallup. He is facing an open count of murder and other felonies in connection to Nordstrom's death. The doctor was beaten to death in his Farmington home in the Foothills neighborhood on June 9, 2011.

Mayes' trial started last week. The prosecution didn't rest on Monday but it may have called its last witness, Chief Deputy District Attorney Brent Capshaw said. The defense will present its case starting today.

Paul Chavez, an investigator with New Mexico State Police, said in court Monday the blood spatter in Nordstrom's bedroom and game room proved the doctor was on the ground when he was beaten. He may have been standing when he suffered the first blow, Chavez said, but the blood spatter found in Nordstrom's home indicated he was laying on the ground during subsequent blows.

"The back part of his head, his skull was gone," Case Detective Tim Nyce said in court. Nyce and another deputy found Nordstrom's body buried under a pile of wood the day after he was killed. "You could see inside the head at what appeared to be the brain."

The blood was in Nordstrom's bedroom and some was on the walls of his game room, which contained his pool table.

Prosecutors have said Mayes hid in the doctor's bedroom and attacked him by surprise when he walked into his bedroom. Mayes' attorneys said their client struck the doctor during a pool game because Nordstrom made a sexual advance toward Mayes.

Naomi Roberts, a crime scene technician for San Juan County, said Nordstrom's blood was found on Mayes, his shirt, his shoes and Nordstrom's pool cue.

She said Mayes' semen was found on a T-shirt hanging in a tree on Nordstrom's property. Prosecutors on Monday also called a witness who said Mayes searched pornography on his iPod after he fatally wounded the doctor.

Prosecutor's witnesses said Monday a print from the style of shoe Mayes was wearing when was arrested was also found on a damaged door at another home in Nordstrom's neighborhood, indicating Mayes attempted to break into another home before he entered Nordstrom's, Capshaw said.

Dr. Ross Zumwalt, the chief medical investigator for the Office of the Medical Investigator in Albuquerque, said Monday that Nordstrom died of blunt force trauma to the head.

Zumwalt described Nordstrom's injuries as Capshaw showed pictures taken from the doctor's autopsy. In addition to numerous lacerations on the doctor's head, face and body, Nordstrom had a broken skull, cheek bones, fingers, hands and nose, Zumwalt said.

"The broken fingers and injuries on the hands and on the backs of the arms are called defense injuries," Zumwalt said. "They are injuries often sustained if people hold up their hands to protect themselves."

In an attempt to counter the contention that Mayes was defending himself from an unwanted sexual advance, prosecutors have called several witnesses to testify regarding Nordstrom's sexual orientation.

Jimmy Dearing, a computer crimes investigator for the sheriff's office, said in court on Monday that he examined Nordstrom's computer and only found heterosexual pornography and an account for an online dating service.

Last week in court, prosecutors called several friends and a former girlfriend who said Nordstrom was straight.

During cross examinations on Monday, Mayes' attorneys pointed out that Norstrom had another computer in his bedroom which was not analyzed.

Ryan Boetel covers crime for The Daily Times. He can be reached at 505-564-4644 and Follow him on Twitter @rboetel on Twitter.