A former restaurant owner accused of fatally shooting his wife in the head is now facing a murder charge.

Sergio DeRosa initially was charged with manslaughter in the May 2014 death of 57-year-old Lynn DeRosa, whose body was found at their Mullica Hill home. The couple owned the Old Bay Restaurant & Bar in Egg Harbor City.

The murder charge was in a superseding indictment handed up late last month by an Atlantic County grand jury. It was made public on Friday.

DeRosa turned himself in this week on the new charge and is now free on $150,000 bail. A telephone number for him could not be located on Saturday.

Prosecutors did not say what prompted them to seek the new indictment. A motive for the shooting hasn't been disclosed.