About Teddy Diaz
Teodoro "Teddy" de Villa Diaz (1 April 1963 – 21 August 1988) was a Filipino musician and songwriter, best known as the founder and original guitarist of the Dawn. As a songwriter, he co-wrote the band's first single "Enveloped Ideas" and the hit song "Salamat", which was released posthumously in 1989. He played guitar on the albums The Dawn (1986) and I Stand with You (1988). Aside from being a guitarist, he played keyboards as credited on the Dawn's 1986 debut album. At the height of his career, and fame, and at the peak of the Dawn's popularity in the late 1980s, he was stabbed to death in front of his girlfriend's house by two bystanders who were allegedly under the influence of drugs and alcohol. The first decision of the three surviving members and band's manager Martin Galan was to continue with the band; they also agreed that Diaz's replacement would not have to be his clone. In memory of Diaz, the Dawn recorded a song that paid tribute to him, "I Stand with You".
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.