Her parents are yet to arrive in Nairobi to make a statement.
Police said they are investigating what details the girl used to register her line.
The phone is said to be among three used to send Msando threatening messages that were recorded at Central Police Station.
An autopsy revealed that Msando was strangled to death. His body had deep cut wounds.
Government pathologist Johansen Oduor also said Msando had incisions on his right arm but the rest of his body was intact
He was murdered alongside 21-year-old Carol Ngumbu.
The NASA coalition raised red flags at the time his body was discovered that the IEBC’s relay of election results would have been compromised and urged urgent speedy investigations into the cause of the murder.
Unfortunately, this was never done and indeed the NASA coalition is at the Supreme Court filing monumental evidence showing that the IEBC’s results for the elections were heavily doctored to produce ‘vifaranga wa computer’.