Man Shoots Woman Then Kills Self at Florida Wal-Mart

Authorities say a man shot a woman he knew while she was working at a Wal-Mart in Florida City, then fatally shot himself.

Miami-Dade Police Department spokeswoman Rebeca Perez says the shooting happened inside the store Wednesday morning after an argument between the two. The woman is in critical condition and the man was pronounced dead at a hospital. Their identities have not been released. No one else was hurt.

Wal-Mart spokesman Dan Fogleman says the company is "deeply concerned" for the woman's well-being.

On Monday, a different couple was shot outside of an Arizona Wal-Mart. The woman died and her husband was critically injured. Authorities say the suspect in that shooting killed himself after being stopped by police in New Mexico. The motive wasn't known.