Postal worker believes reclusive family may have left eerie note for him as he recalls terrifying moment he discovered three dead at home

A New Jersey postal worker who alerted police officers to three bodies inside a home on his route Friday believes the reclusive family left an eerie note for him.Don Clements told the New York Post he was working his route as usual in Mount Holly when he found a sign on the door of a ramshackle home reading '9-1-1 Inside' above crude drawings of two sad faces with X's for eyes. The disturbing note helped raise the alarm, but an investigation into what happened to the three 'elderly' victims is ongoing. It is also unclear who may have left the message.'I thought it was weird, because the only person that would have been able to see that sign would have been me, 'cause I'm the only one that goes to that house every day,' he said.'And it's just like, nobody else can, you can't see that sign from outside.' Clements then noticed that the home's mailbox had been sealed with clear wrapping tape – the same tape that was used to attach the ominous sign to the door. 'The only person who goes up to the door is the mail carrier,' Clements reiterated.'It's weird. The whole situation was weird. Definitely don't want it to happen again.'Clements then called 911, and when police arrived at the house on Winding Way, they found a bloody scene inside and discovered the bodies of three 'elderly individuals,' the identities of whom have not yet been released. A postal worker found a note that read '911 inside' with two drawings of frowning faces with X's for eyes next to the mailbox by the front door A neighbor said two brothers and their sister lived in the homeBut neighbors have said it was a family of brothers and sisters that lived at the home, and Clements said he thought three or four people lived in the dilapidated house with peeling paint and rotting window frames.An unidentified neighbor also told the Post that four brothers and sisters lived in the home and kept to themselves.'I mean, we've been here 50 some years. They were here before us, but pretty much stayed by themselves,' she said. 'I do know that one sister was a crossing guard for years. My kids knew her and everything like that. And so she worked parades and other things as a crossing guard here in town.'The other brother, he was like clockwork. He would always walk down to 7-Eleven around 2.30, 3 and walk on back. I think he got lottery tickets and something to drink.'Another neighbor, David Babcock told NBC 10 that one of the brothers worked at Boscov's for 40 years.'They were very nice, they didn't bother anybody,' he said. But the longtime neighbor who spoke to the Post noted that other than the one brother who would leave each day for 7-Eleven, the occupants would 'barely leave their house' and did not drive anywhere. David Babcock said he was not surprised something bad happened in the home, but never expected for his neighbors to be found deadBabcock said he was not surprised something bad happened in the home – though he would never expect his neighbors were dead.'We thought the house would be condemned and they would send them to a group home,' Babcock said.The neighbors described the area as a 'quiet neighborhood,' with the one longtime resident saying she heard no signs of violence ahead of the morbid discovery on Friday.Yet, she said, she did notice something unusual as she walked past the unkempt house on Tuesday. 'Tuesday is our trash day,' she said. 'And I saw someone coming out of the house.'All the years I've been here, I've never seen anybody come in, go out of the house [except for the man who walks to 7-Eleven each day].''But it was trash day. He had a bag in his hand, took it down to the curb, dropped it next to another container,' she recounted. 'It was just a little bag. He put it down and walked away.'The man was wearing 'all black' as he continued walking down the street, she said.The Burlington County Prosecutor's Office said there is no threat to the public and autopsies are pending. The trio's cause of death is currently unknown. But Clements said he was still shaken up by the disturbing discovery.'That sign is so bizarre. It just felt weird... That's not like that happens every day, you know,' he said. 'It's just, this is the first time I've ever, ever seen something like that.' In a statement, Police Chief Clifford Spencer said he understands 'that an incident of this nature is deeply concerning to our community.'As your Chief of Police, I want to assure you that the safety and security of our residents remain my highest priority,' he said, adding that his 'thoughts and prayers are with the families and loved ones of those who lost their lives in this tragic incident.'As this remains an active investigation, I ask for the community's patience and understanding as investigators work to determine the circumstances surrounding these deaths.'