My deepest condolences to Willie’s family. Willie was a mentor to many and his impact on my and many other young engineer’s was profound and lasting. Willie always made time to listen, interact on a human level and give me his full attention and care, no matter how much pressure or other work he was carrying at the time. Willie’s approach to work and life have had a lasting impact on me and I hope all those dear to him find comfort in similar warm memories of him at this difficult time.