POLK COUNTY, Fla. -- A Central Florida man was beaten to death over the weekend with an umbrella, according to authorities. Polk County sheriff's deputies said Richard Oaks, who owns a lounge in Lakeland, Fla., became involved in a fight with his friend, Alan Pierce, late Saturday. Pierce was hospitalized after the incident, officers said. After the alleged attack, Pierce's 17-year-old daughter apparently sought revenge and gathered her friends together, including Charles Bonfiglio, 21, and his brother, Corey, deputies said. The group drove to Oaks' home and beat him to death, a sheriff's report said. The Bonfiglio brothers and another...