The man was shirtless, covered in blood and carrying a knife.
And he was headed straight for him.
The sight sent chills down the spine of a witness who wanted to be known only as Michael, 21.
He was sitting at the void deck with his girlfriend at Block 246, Jurong East Street 24, at around 7.45pm yesterday when he saw the man walking in his direction, carrying a knife.
Michael told The New Paper that the man appeared quite "angered" as he walked past them.
It was a shocking sight, said Michael, who is serving his national service. His girlfriend, a 21-year-old student, declined to be interviewed.
Said Michael: "His body was heavily tattooed and also covered with blood, but I couldn't tell if he was injured or if the blood was someone else's."
The man wore a pair of olive green bermudas and black slippers.
"The man didn't say anything, but walked to the next block as if he were looking for someone," said Michael.
The man then returned to Block 246 and stood at the lift, leaving a trail of blood.
It was then that he walked towards the couple, knife in hand. Michael and his girlfriend decided to leave.
"He didn't say anything when he came our way, but as he walked towards us, I decided we should leave before anything else happened," said Michael, adding that he called the police, who arrived and arrested the man.
A police spokesman confirmed the incident.
The police received the call at 8.08pm asking for assistance at Block 373, Jurong East Street 32.
Police found four men who were injured. They were sent, conscious, to National University Hospital.
The spokesman said preliminary investigations showed the men were believed to be involved in a case of voluntarily causing hurt with dangerous means.
Investigations are ongoing.
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