PORTLAND, Maine — The co-owner of a Maine lumber mill has died from injuries he sustained during a fire and explosion at the facility, bringing to three the number of fatalities. Alden J. Robbins died Thursday from injures he suffered in the May 15 fire at Robbins Lumber in Searsmont, according statements Friday from Maine Gov. Janet Mills and the Robbins family. …Two firefighters died from injures sustained while fighting the blaze. They were Searsmont Assistant Fire Chief Wayne Woodbury, 76; and Andrew Cross, 27, of the Morrill Volunteer Fire Department. Ten people were injured, including Robbins’ daughter Lily. …“Alden was the heart of our family in so many ways, and nothing mattered more to him than the people he loved,” his family said. …Mills said Robbins was a leader in Maine’s lumber industry for decades, “and a devoted steward of one of our state’s most storied businesses.” …Robbins Family shares statement regarding death of Alden Robbins.