Witch by Christopher Pike

Julia is an extraordinary teenager with extraordinary powers—she can heal people with her touch and glimpse into the future. She was warned to never look into the pond with moonlight shining on it and when she does, seemingly by accident, she sees a young man being shot in a hold-up and dying in her arms. Later on when she attends a football game at school, she meets the young man. He is her friend's new boyfriend. Though an ill-fated love, Julia is determined to rewrite Jim's fate.