Protests were witnessed on Tuesday morning at Nairobi's Kabete area after a a police officer shot and killed six people before committing suicide.
Police said the constable Benson Imbatu attached to Kabete police station is said to have gone home with his AK47 rifle and picked a quarrel with his wife Carol Imbatu at the wee hours of the night.
Family members of the police officer and his wife are now asking police officers to investigate the matter.
"I would love justice to be done... I loved my sister and whatever has happened is unfortunate," said Oliver Musoga, brother to deceased police officer.
"We would also like to get help...and know what to do with the body. He has killed other people's children," said Carolyn Orenja, cousin to deceased police officer wife.
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