With Paris still reeling from this month's deadly attacks, anger is turning towards Muslims in the US
A photo and a Facebook message sent to someone in New Jersey led the authorities in Fort Bend, Texas to arrest a man, Clayton Cansler, for threatening to shoot up a mosque.
"He did say that he sent it and he sent it because he had a close friend of his die in the 9/11 attacks and with the recent terrorist attacks in Paris, he felt this was something he wanted to do," said Ms Caitlin Espinosa from the Fort Bend County Sheriff's Office.
It was too late for this mosque in Meriden, Connecticut.
Police say hours after the Paris attacks, someone opened fire on the Baitul Aman Mosque.
No one was injured. Now the mosque is using what happened to educate others about Islam.
"It's not going to make us scared. It's going to in fact make us open the doors more," said Mr Salaam Bhatti, spokesman of the Baitul Aman Mosque. "We are going to engage the community more."
"So, they hit right here. This is where it came through."
In Orlando, Florida, Mr Amir Elmasri says he found a bullet hole lodged in his bedroom dresser.
"I don't want this to be our way of life, which is after this incident, let's live in fear," said Mr Elmasri, a resident.
The Sheriff's Office is looking into the possibility of a hate crime, but has yet to find evidence - just the bullet hole inside and several more outside - as concerns among Muslims in the US grow.