A manhunt is underway in Massachusetts for Aaron Pennington, an Air Force veteran suspected of fatally shooting his wife, Breanne Pennington, at their home in Gardner. Massachusetts State Police are searching for Pennington, who is considered "armed and dangerous." Police were called to the couple's home on Cherry Street on Sunday morning and found Breanne dead. The couple's four children, who were inside the house at the time, have been taken into custody by the Department of Children and Families. Authorities have released a description of Pennington and believe he may be driving a white BMW. The neighbor who called 911 reported that Pennington's children had come to her house scared because they couldn't find their father and their mother was crying. Investigators discovered that the couple had been dealing with marital issues, and Breanne had been planning to move to Texas with the children to get away from Aaron. Friends and family describe Breanne as a loving and caring mother who always saw the best in people.