POINT BREEZE (WPVI) --A woman is dead and a man is in critical condition after a double stabbing in the Point Breeze section of Philadelphia.
Police say all indications are this was the end result of a violent domestic dispute.
Homicide investigators seem to have a pretty good theory of what happened, but are trying to support it with the physical evidence.
The tragedy in the 1500 block of South 19th Street left neighbors and friends in shock.
"It was shocking. I just don't know what could have happen. It's just awful. Things happen you know," said neighbor Janice Smith.
Police say a man arrived at the home just before 4 p.m. Friday to find his mother and father in a pool of blood in an upstairs bedroom. Relatives and neighbors have identified the couple as 63-year-old Robin Potter and her 67-year-old husband Anthony Potter.
Police say she had been stabbed repeatedly and was pronounced dead at the scene. Her husband was still alive with a stab wound to the neck and chest, and now listed in critical condition at Penn Presbyterian Medical Center.
"Were there instruments of crime located at the scene?" asked reported Dann Cuellar.
"Yes, both of the weapons were still on location inside the residence," said Philadelphia Police Capt. Michael O'Donnell.
Sources say a knife and a pair of scissors were recovered inside the blood-soaked bedroom. Sources and neighbors tell us there has been a history of domestic problems between the couple. Some report they had a big fight Thursday night before their son made the horrific discovery.
"Hey, things happen, it's all you can say you know. I don't know what was going on between them," said Smith.
"You know everybody has their ups and downs, but I'm still upset about this," said family friend Kim Lindler.
Family friend Katrina Bennett says she had just seen the son who made the discovery a couple hours earlier and asked him how his family was doing.
"He said everybody's good. ... This was a couple hours ago, and he said everybody's good," said Bennett. "It's heartbreaking, it's heartbreaking. Like I'm in shock."