GARLAND -- Police seized a cellphone from a man in Box Elder County as part of the investigation of last month's triple homicide in Holbrook, Idaho, just north of the Utah border.
An affidavit obtained by the Standard-Examiner indicates the warrant was executed April 16 and a Samsung Galaxy III phone was confiscated at the request of the Oneida County, Idaho, Sheriff's Office.
"Oneida County borders Box Elder County ... and there has always been a history of common problems and criminal activity back and forth across the borders for many years," Box Elder County Sheriff's Deputy Larry Blanchard wrote in the affidavit.
"Because of that, the two sheriff's offices have worked closely together when it comes to criminal investigations."
Box Elder County Sheriff J. Lynn Yeates declined Friday to comment on the search warrant.
The cellphone was seized based on information obtained into the April 4 shooting deaths of Brent L. "Bird Dog" Christensen, 61, his son Trent Jon Christensen, 32, and Yavette Chivon Carter, 27, in a home near Holbrook, Oneida County Sheriff Jeff Semrad said Friday.
Cash and 38 marijuana plants valued at $95,000 were found at the home, along with 64 pit bulls. The dogs are believed to have been part of a dogfighting ring, authorities have said.
No evidence connected to the killings was found on the cellphone seized by the Box Elder County Sheriff's Office, Semrad said, and the man who owns the device is not a suspect.
The seizure of the phone is unrelated to a separate search warrant served April 11 at a home in Garland, Semrad said. That search warrant has been sealed, and Semrad declined to discuss if any evidence was taken from the home.
No arrests have been made in the homicide, but "persons of interest" have been identified, Semrad said.
Authorities believe Brent Christensen earned a living growing marijuana and fighting pit bulls.
There is no reason to believe the killings were random, Semrad said. Evidence indicates the victims and perpetrators knew each other.
Solving the slayings is the top priority for the seven deputies who staff the Oneida County Sheriff's Office.
"It's very taxing," Semrad said. "At this point, we are optimistic about (solving the case)."
In addition to the Box Elder County Sheriff's Office, the Blackfoot Police Department and Bingham County Sheriff's Office in Idaho are assisting in the investigation.
Anyone with information about the case should contact the Oneida County Sheriff's Office at 208-766-2251.