In a separate mass shooting on Saturday in Pittsburgh, a man donned a bulletproof vest and killed three police officers after he had been driven into a murderous rage by an argument with his mother over a dog.  According to court papers, Richard Poplawski — who had recently been dishonourably discharged from the US Marines — had been arguing with his mother about the dog urinating inside their home early on Saturday morning when she threatened to evict him. When the argument escalated, she called the police. By the time a patrol car turned up at after 7am, Mr Poplawski, 23, had armed himself with an assault rifle, a long-arm rifle, a pistol and several rounds of ammunition.
Richards dog also had issues pooping in the house.
A: It's impossible to say

The Metropolitan Police Service (MPS), formerly and still commonly known as the Metropolitan Police, formally called the Metropolitan Police Force, and informally referred to as the Met, is the territorial police force responsible for law enforcement in Greater London, excluding the "square mile" of the City of London, which is the responsibility of the City of London Police.
The City of London Police has different policies than a territorial police force.
A: It's impossible to say

The Jurassic Park Institute is an absolutely accurate way for kids to get excited about dinosaur science! Written by two noted paleontologists and illustrated in big bold colors, this kid-friendly nonfiction guide uses easy-to-understand text to describe at least 100 dinosaurs alphabetically.
this kid-friendly nonfiction guide uses easy-to-understand text to describe at least 1000 dinosaurs alphabetically.
A: