Patrick Alasdair Fionn Turner (19 October 1969 – 6 October 2011) was a British-born scientist, who played a major role in the VR Centre for the Built Environment and the Space group at the University College London. His contribution had a great impact on the development of space syntax theory. This goes in parallel to his research into introducing a dynamic agent model that derives aggregate spatial analysis from the visual affordances of the built environment. Based on the principles of Turner's theory on Embodied space, his agent model proves to correlate well with natural movement behavior in architectural and urban environments. Turner was born on 19 October 1969, in London. He earned an MA in Natural Sciences from the University of Cambridge, and an MSc in Artificial Intelligence from the University of Edinburgh. Turner was last appointed a reader in Urban and Architectural Computing at the University College London in 2011. Turner died on 6 October 2011 after a long struggle with stomach cancer. Research Alasdair is a computer scientist whose interests were focused on the interface between the domain of architecture and urban design and the underlying systems that comprise their socio-physical dimensions. He looked for dynamic models that evolve through the process of structural coupling between the man as a vision-driven agent and the background environment. Agents are seen to have two different patterns of movement; a natural movement and a navigational movement. Natural movement is suggested to be the simple product of Agents’ vision and the spatial affordances of the built environment. Navigational movement is the pattern of movement that agents learn by retrieving their spatial memory and implementing that into their navigational decisions with the purpose to reach a certain destination point. Agents are adapted to learn through introducing a neural network method to control their movement behaviour. Alasdair aimed at implementing these methods into building evolutionary design model to reflect on an emergent Ecomorphic model. The model evolves a relationship between the collective patterns of movement by agents and the formation of the environment. In the model he developed with Alan Penn, the environment has an underlying Exosomatic visual architecture (that is, a paradigm of vision that holds for configurational affordances in the environment and outside the body which guide movement decisions). He understands the spatial affordances of the environment as the possibilities for vision and movement in space. Constrained by these affordances, agents’