Police are seeking four persons of interest in the murder of IEBC's Chris Msando and student Carol Ngumbu.
They said they will explore motives of procurement wars or love gone sour.
Sources told the Star on Thursday that among the four are an MP and woman representative from Central region. They were among the first at the scene where Msando's car was found.
Six people have recorded statements.
Msando, the ICT chief, was found dead in Kikuyu on Saturday along with Carol. Their bodies were only identified at City Mortuary on Monday.
On Thursday, government pathologist Johansen Oduor said Carol was strangled. Police suspect she may have been collateral damage — that is she was not the target, but was in his company, in the wrong place at the wrong time.
The 21-year-old was from Gachie, Kiambu county, and had just completed her studies at the Karen campus of Kenya Medical Training College. She would have graduated in December.
An autopsy revealed the electoral agency's ICT manager was strangled to death.
"He died from strangulation and had incisions on his right arm but the rest of his body was intact," government pathologist Johansen Oduor said on Wednesday.
On Tuesday, police released details tracing the final hours of Msando and Carol.
They were last seen at a bar on Koinange street last Friday.
-The Star|MERCY WAIRIMU