Cops: After Fight With Wife, Coast Guardsman Kills Her, Then Son

After an argument with his wife at their Miami home early Sunday, police say a Coast Guard service member fatally shot her, their 7-year-old son, and then himself. Investigators say Petty Officer 1st Class John Presnar, 44, also shot the couple's 8-year-old daughter, who is in critical condition, ABC News reports. Per a police statement, 39-year-old Gretchen Presnar's mother was in the home at the time and witnessed part of the fight; when her husband pulled a gun, Gretchen Presnar told her mother to leave the house and call for help, Local 10 reports. John Presnar had served as an electronics technician with the Coast Guard since 2001, the Miami Herald reports. (In the case of a missing Colorado mom, police have searched her fiance's property.)