So the reaction by school officials and police as the only other factor, happens to be no factor at all. Do you have evidence of the teacher that reported him, of hating Muslims? Yes or no?
How do you go from multiple school officials and police in one sentence, to a single teacher you don't even know they name of in the next, and use that to form a question? It's not even a valid question since we don't know the name of the teacher. If the question is do we have any evidence that the school officials who reported him are islamophobic, the answer is yes. If only they hadn't gone and suspended him anyway, after knowing it wasn't a bomb and it wasn't a hoax bomb, they could still have tons of wiggle room to say they aren't islamophobic. But the act of suspending him, for doing nothing wrong, and admitting that he did nothing wrong, can only point to islamophibia. The actions of the school alone is enough evidence to convict, but then add in the actions of the police, the praise of the mayor, the comments made by the police chief, and it's a slam dunk.
In addition, led by the mayor, city officials, including the school and the district, have a history of knee-jerk islamophobia. The school district and its board reacted to an agenda-driven chain e-mail that warned of the horrors of Islam, Muslims, and the fact that Isamic principles would be taught in the schools as they have been stealthily inserted into the curriculum and textbooks of the schools. They had 5 months worth of meetings on it, and it turned out that the e-mail was just a hoax by some right wingnut islamophobe with ties to Pamela Geller. Officials at the high school this past summer wanted to insert into the Code of Conduct a prohibition on all headgear (in addition to the not-hats rule already in place), including religious headgear, because they found it too distracting to effectively teach. The only people in the school who wear religious headgear are Muslim girls. But even the school board nixed that one.
The mayor was quick to defend the school, as it turns out before she had even talked with anyone at the school. She also got on Facebook and in a post dripping with islamophobia she praised the school for their heroic efforts in keeping everyone safe. When the backlash hit, and after she had talked to school officials, she edited that out with an entirely new paragraph that completely reversed the original and praised the kid.
So yes, there is plenty of evidence, none of it conjecture. On the other hand, there is zero evidence, none whatsoever, that this was a "set up" by the father, but that's exactly what the wingnuts are trying to prove. Because they want and need it to be true. The agenda depends on it. Well, at least until they are unable to do so, then they'll move on to the next thing. On the upside for the wingnuts, more and more Muslims are coming here to live, so they'll have plenty of opportunities to make stuff up.