IEBC Director of ICT Chris Msando, who went missing on Friday, is dead.
Police on Monday said his body and that of an unidentified woman were found in Kikuyu, Kiambu County, and taken to the City Mortuary.
Attendants at the mortuary told the Nation that the two bodies were brought in on Saturday at 11am.
The bodies, they said, were brought in by police in their vehicle and Mr Msando's was booked as that of “an unknown adult”.
Members of Mr Msando's family went to the mortuary and positively identified him.
Many burst into tears, with attendants and friends having a hard time calming them down.
The bodies were found hours after Mr Msando’s vehicle was found behind Thika Road Mall, off the Thika Superhighway in Nairobi.
Police said they found the grey Land Rover Discovery near the mall's parking and towed it to Kasarani Police Station.
Nairobi County Police Commander Japhet Koome said the vehicle was dusted for fingerprints early Monday morning.
Mr Msando's family reported his disappearance at the Embakasi Police Station on Sunday.
IEBC Chairman Wafula Chebukati and CEO Ezra Chiloba were among the commission’s top officials who rushed to the mortuary on getting the sad news.
Mr Msando was one of the few people with crucial information on the IEBC's election preparedness and technology, including knowledge of the location of the commission’s servers.
He had reported to the Central Police Station in the capital Nairobi about death threats to him.
His death comes a week to Kenya’s General Election, scheduled for August 8.