According to details, the sketch was prepared by the investigative authorities with the help from eyewitnesses.
At least 70 people were killed and over 300 injured, many of them children, when a suicide bomber blew himself up in a crowded Gulshan-e-Iqbal Park in the provincial capital of Punjab.
Large number of people were present in the Gulshan-e-Iqbal Park due to the weekend and Easter celebrations.
The incident was strongly condemned at a national and international level.
