The Hamze and Alameddine families have been at war with the past 12 months bringing 4 shooting deaths. 

The latest incident, a daylight shooting in Sydney saw Salim Hamze and his father Toufik attached in the suburb of Guildford.

The ongoing battle has seen nonsensical violence terrorise neighbourhoods, with unfortunate bystanders affected.

Daily Telegraph Crime Editor and author Mark Morri joins john Stanley to share the details of this bloodied history in Sydney's underground.