A Muncie couple fighting in a public park for up to 10 minutes were arrested after their brawl injured their one-month-old infant being held by one of the parents. Police arrested 21-year-old Robert McCormick and 18-year-old Heather McCormick for domestic battery and neglect of a dependent. Police say Heather was trying to take the baby and instead hit the child in the head while the two fought. They both have bail set.