Authorities say an 80-year-old New Jersey man died from injuries suffered when his wife hurled a cocktail glass and struck him in the head.

The Essex County Prosecutor's Office on Friday said 76-year-old Marlene Mackenzie will soon face an additional charge of reckless manslaughter. She was already charged with aggravated assault following the incident early Thursday morning.

Prosecutors say she called police to their North Caldwell home and reported her husband was not breathing.

Robert MacKenzie was hospitalized and died about 18 hours later on Thursday night. The medical examiner attributed the death to blunt force trauma.

A lawyer for the woman did not immediately return a message seeking comment Friday. She has been freed on $20,000 bail.