The family said they talked to Kinyua on phone Thursday and planned for a family, meeting which was scheduled to take place on Saturday.
That was the last communication the family had with Kinyua.
A Kirinyaga family has been thrown into mourning following the death of their kin who perished when a military helicopter crashed on Thursday afternoon.
The family is trying to come to terms with the loss of their loved one, John Kinyua, 38, who was a senior sergeant attached to the Kenya Defence Forces ( KDF).