The FBI has offered to unlock another iPhone for police after revealing it could access the handset used by San Bernardino killer Syed Farook, who and his wife were shot dead after killing 14 people in December.
Police in Arkansas wish to unlock an iPhone and iPod belonging to two teenagers accused of killing a couple, according to the Associated Press.
Less than a day after its San Bernardino announcement, the FBI agreed to help in the homicide case.
A judge agreed to postpone the Arkansas case on March 28 to allow prosecutors to ask the FBI for help.
Hunter Drexler, age 18, and Justin Staton, age 15, are accused of killing Robert and Patricia Cogdell at their home in Conway, Arkansas last July.
Staton had been raised as a grandson by the Cogdells.