The sleuths, who were five in number, indicated that the first statement Cherono issued was not adding up, stating that it needed some clarification.
Cherono told detectives that a gang of six men stormed their Bamburi home in Kisauni, Mombasa on Thursday night. Three of them, she stated, forcefully ejected her from the house, while the other three remained inside.
She added that the men, who wore hooded jackets, ordered her to get into the vehicle and drove until they got to Serena hotel where they tied her hands to the steering wheel.
Cherono was untied by well wishers the next day after she called for help.
â€œI learnt that the attackers had killed my husband on Friday morning when well-wishers untied me from the steering wheel,â€ she stated.
Rouwenhorst and his watchman were found murdered in his apartment. His hands and legs had been tied and his mouth gagged.
The two were taken to the Pandya Hospital Mortuary awaiting a postmortem.
The Dutch national is said to be a multi-millionaire who owned properties in Utange, Bamburi, Mitamboni and Mtwapa areas.
The Standard reported that he also owned several entertainment joints in Mombasa and Kilifi counties.
The incident came just a day after a German national was found murdered in Mombasa County.
The German national had been on the run since his girlfriend was found murdered and her body stashed under their bed.