In this 2017 file photo, a pitbull named "Lucy" participates a the U.S. Postal Service "National Dog Bite Prevention Week" during an awareness event in at the YMCA in Los Angeles, California.
In this 2017 file photo, a pitbull named "Lucy" participates a the U.S. Postal Service "National Dog Bite Prevention Week" during an awareness event in at the YMCA in Los Angeles, California. Amanda Lee Myers Associated Press
In this 2017 file photo, a pitbull named "Lucy" participates a the U.S. Postal Service "National Dog Bite Prevention Week" during an awareness event in at the YMCA in Los Angeles, California. Amanda Lee Myers Associated Press