At least one person was killed and several others injured on Friday evening after a grenade exploded in Nairobi’s Eastleigh estate. Nairobi police boss Anthony Kibuchi said preliminary investigations indicated that the deceased intended to attack a supermarket in Eastleigh’s first avenue, near the Moi air base….the attack comes barely 12 hours before the arrival of us secretary of state Hillary Clinton who is due to visit Nairobi on Saturday as part of an 11-day tour of Africa…..Wilkister Nyabwa reports