The nearly eight-year Tobin Center for the Performing Arts capital campaign was declared complete Tuesday morning with the announcement of a final $5 million gift. The final total of private donations came to more than $58 million, about $4 million more than its goal, thanks to the donation by the Will Smith Foundation, named for an 8-year-old who died in 2007 after an auto accident in Hawaii. The $5 million gift was presented by Susan Naylor Moulton, president of the foundation named for her deceased son. The donation entitles Moulton to name the Tobin Center’s river plaza. The name will be decided and announced at a later date, said Bruce Bugg Jr., chairman of the Bexar County Performing Arts Center Foundation, the nonprofit that operates the Tobin Center, and who led the capital campaign. Moulton said that when she was shown the still unnamed Tobin Center river plaza, “I saw the plaza, the palm trees, the river, and I said, ‘This is Will.’” The Will Smith Foundation, with no connection to the famous actor, organizes galas to raise money and awareness for numerous children’s charities, Moulton said.