Colin Fitzgibbons, a respected North Texas real estate executive known for shaping some of the region’s most recognizable mixed-use developments, has died at 46. His passing was confirmed in a Facebook announcement shared widely among industry colleagues and civic leaders. The cause of death has not been released. Fitzgibbons served as president of Hunt Realty Investments LLC, where he helped guide one of Dallas’ most influential real estate portfolios. Before joining Hunt in 2020, he held leadership roles at KDC, contributing to two high-profile, multibillion-dollar projects—CityLine in Richardson and Legacy West in Plano—both considered transformative developments that helped define the…