Gregory D.K. DeCosta 72, of Kaneohe, died in Kailua on March 3, 2018. He was born in Honolulu. Private services. SHARE ON FACEBOOK SHARE VIA EMAIL Our deepest condolences to the family and friends of the deceased ADVERTISEMENT Explore more Search Records for Gregory D.K. DeCosta with Ancestry® Discover Gregory D.K. DeCosta Family Story with Ancestry® AncestryDNA® with Traits Discover Details of Your Family History - Search Records with Ancestry® Sponsored by Ancestry