At least four people were killed in different firing and violence incidents here on Friday.The bodies were shifted to Civil Hospital. The deceased are aged between 20 and 25 years.As per details, at least three limb-tied bodies were found from Garden area of the city. The bodies were found in separate gunnysacks placed inside a rickshaw from Garden’s zoo.The rickshaw with 84687 number-plate was snatched a day earlier from the same area of Garden. A theft case had been soon lodged with the area police station.The deceased could not be identified as yet.Meantime, a man was gunned down in Manghopir. The man has been identified as Sarmast.Also, two people were injured in a firing incident in Korangi-5.Police started investigations into the incident.