The writing needs polish
I'm going to start the review with a few pointers, then I'll focus on a couple of paragraphs, I tell everyone that I'm not a professional writer or editor, so take my advice with a grain of salt. These are just my observations as an amateur.
Read the story now
The first thing I want to call your attention to is your POV. You mention it's third-person, but remember there are two types of third-person POV: third-person omniscient, and third-person limited. Your story seems to be third-person omniscient which is fine, but you need to be careful of head-hopping. Make sure every time you leave one character's mind, you clearly define for the reader whose mind you're going into next.
A little nitpicky note: the past tense of stride is strode, not strided. I call your attention to this because it happens in the first sentence of the story. Such an early gaffe turns a reader off in a hurry.
Take some time to read about passive voice vs active voice, The first chapter is inundated with passive voice prose, and it takes away from the reading experience. Passive voice is when the action is happening to something as opposed to active voice when the action is being done by something. They can easily be identified by the overuse of was, will be, could be, going to be, have, has been, etc. I don't remember where I read it, but I read somewhere that your prose shouldn't contain more than 4% passive voice. It's an easy trap to fall into, and I'm guilty of it as well.
Try to avoid block-description of your characters. Large segments of descriptions are not only dry but pull the reader out of the story. I understand the temptation to reveal how amazing and wonderful a character is, but beyond just revealing what he/she looks like, there needs to be a reason for the description, and you should find a compelling way to provide it.
The teacher had long blonde hair, blue eyes, and the most startling smile. She wore a grey pants suit and black pumps.
That's a pretty dry description. If you feel like you just have to get it out all at once, try to make it engaging.
The teacher's long blonde hair, though luxurious, didn't mesh with the boring grey pants suit she liked to wear. She wore black pumps, probably to hide her intimidating height. But her smile, the most dazzling I'd ever seen, was what drew me in. And those blue eyes—an ocean I would happily drown in.
This lets the reader into the POV character's mind as he/she looks at the teacher and reveals character information about both of them. The teacher is beautiful and is trying to hide it, and the POV character lusts after the teacher. It gives a reason to provide the description other than, hey look at how beautiful this woman is.
The last point I want to make before moving onto your specific text is formatting dialogue. Be sure to separate your dialogue from your prose as much as possible. If you want/need to use an action as dialogue attribution, use only what's needed. If the action is going to be more than a sentence or two, put it in a new paragraph, except in very rare cases.
Okay, I lied. I want to make one more point regarding POV. When your story opens, it does so with two generic cops. You want to get the reader involved with your characters as soon as possible, let us know who's walking into that office. Don't wait to reveal the players in the game.
Now, on to your specific text. With my previous points in mind, I will rewrite a couple of paragraphs to illustrate what I'm saying. Bear in mind that these are only suggestions, and I have a definite writing style. I'm not saying my way is the only way to write, but I hope you find my suggestions helpful, and they lead to a more engaging story. I won't call your attention to any specific changes I make. I want you to compare them to your own writing and see which you prefer. If you have any questions, feel free to post on my wall, and I'll do my best to answer them.
Shit, one more point. Use 'ing' words sparingly. When writing past tense, you want to avoid present tense verb use, for the most part. The fewer 'ing' words you use the more impactful they will be, just like adverbs.
Double shit! You also want to avoid using dialogue as exposition dumps. It is a useful place to drop exposition, just make it occurs organically within the dialogue.
Now, on to the example—for real this time.
Officer Klein and his partner strode into the massive office like they owned the place. They didn't have a warrant, but the receptionist invited them in so they were covered, legally. The man who sat behind the gaudy desk pulled a cigarette from his mouth and smirked at them. The motion emphasized his chiseled jawline.
"I'm officer Walsh, and this is my partner, officer Klien," Officer Walsh said. "I'm sure you know why we're here."
The man behind the desk narrowed his powder-blue eyes. "I do, but I'd prefer if officer Klien asked the questions."
The two cops looked at each other, It was an odd request, but neither of them saw any reason to deny it.
"Very well," Klien said. "For the record, you are Xavier Winter, CEO of Winter Corp?"
"Yes, I am," Xavier said. "An you are Jase Klien unless I'm much mistaken.
Jase rocked back a little, startled that this man knew who he was. With his money, though, it wasn't too surprising he'd know who was investigating his wife's murder.
"The coroner puts your wife's time of death around one in the morning," Jase said. "Can you tell me if you were with her at that time?"
"That's a stupid question, Officer Klein," Xavier said. "If I was, why would I ever admit to it?"
"He's just gonna jerk our chains," Walsh said. "I'm going to go talk with the secretary. Have fun with this guy."
Jase waited for his partner to leave the room before continuing his questioning. He sat down opposite Xavier and leaned on the glass desktop. The tension weighed on him so he turned it inward and used it to fuel his words.
"You don't seem to be that broken up by your wife's death, Winter," he said.
So, that's just a small example of what I'm referring to. See if you can identify how my points got us from your original to that example. I obviously took some liberties, but my intent is not to hijack your story. I've found a lot of really intriguing stories her on Inkitt that only lack a few hits with a writing stick to be really good. Yours is one of those. I would highly recommend reading up on writing style and focus on the technical side of your craft. It will only serve to make your good ideas great stories.