Looking for anyone who might have witnessed someone break into my car

I was parked in the Yates street parkade on Sunday Jan 13, 2019 from 2:15pm to about 7:30pm. I came back to my car and the back corner window was shattered and my backpack with all my personal stuff ( valuing over $500 ) was gone. I drive a white Subaru. I was parked on the 5th floor. Ive talked to the police and the security of the building and no ones seems to be helping. If there are any chancing that one of you saw something then please contact me