Surveillance video released Wednesday shows the man police are hoping to identify.
RELATED | Man suspected of vandalizing 63 subway cars, breaking 200 windows in NYC
Since May, more than 400 windows have been smashed on subway cars, including hundreds on 7 trains alone.
The MTA says the damage has costed them more than $300,000.
So many windows have been broken that the MTA is running out of replacements.
RELATED | Subway window-smashing spree: 7 train vandal strikes again, service at risk
They say it will soon result in more time between trains - translating to longer waits on subway platforms and more crowded subway trains, two things MTA is actively trying to avoid during the pandemic.
The MTA is offering a $10,000 reward in the case.
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