A 17-year-old boy who identified as an "East Asian Supremacist" has also been detained.
The resident has been allegedly harassing his neighbours for over a decade.
Many netizens were moved by his distress, with one donating S$390.
The doll was burned and stuffed into a blue IKEA bag.
He suffered an asthma attack and had to use a nebuliser.
The vegetable vendor collapsed suddenly in front of her stall while walking back from the restroom.
She was once spotted "dancing" while waving her undergarments in the corridor of units believed to have complained about her.
A clinic provided free treatment for the dogs, who suffered from smoke inhalation.
The 70-year-old dog owner was asked to hand over his pets to authorities.
The driver found no blood or visible damage on the front of his car.