Reaction to Omar's name being released as the Orlando shooter is being buzzed about on social media.
As a result of the tragedy, Orlando is the top trending Twitter item, with more than 517,000 tweets about the city. The violence has also caused #GunControlNow to become a popular hashtag, with more than 11,000 tweets about the term flowing into Twitter.
Other popular hashtags that have emerged on Twitter in the wake of the attack from Mateen include the label #MassShooting, which has gained more than 3,200 tweets in a short period of time. Also trending is the word Muslims, along with O Negative, because of the blood types that folks are being urged to donate in the wake of the mass shootings, including other much needed blood types.