My initial view is that as humans we (effectively) have free will. Having free will is part of the core definition of a human, so if I voted otherwise I would be claiming that we are not in fact human.
I do believe in universal laws, such as gravity and the speed of light in a vacuum. But there is a point where the human brain can decide to act in a certain way that is not predetermined.
I accept that the choices we make (the vast majority of which are subconscious) are influenced by our environment, but we are not machines subject to the absolute rule of causality. The brain is much much too complicated for this, and the influence of random events is influential in deciding the way we behave.