Danielle Uskiwich, 28, suffered a brain bleed and multiple strokes after being struck in the head by a crowd surfer at a concert earlier this month. FLORISSANT, Mo. — A Missouri woman who suffered a traumatic brain injury and multiple strokes after being struck in the head by a crowd surfer at a concert has died, leaving her family mourning a sudden loss while honoring her decision to become an organ donor. Danielle Uskiwich, 28, initially experienced mild headaches after attending an outdoor music festival earlier this month with friends. According to family members, what first appeared to be a…