On the morning of 11 September 2001, I was sitting here at this computer checking my e-mails. At that time, I had two TV sets in my office monitoring daily news on CNN and Fox. I recall watching the first broadcast and plane attack. Upon the second attack, I quickly realized we were under attack by someone for some reason. Like many people, I still have my questions and doubts even 20-years later.

(From Wikipedia) https://en.wikipedia.org/wiki/Casualties_of_the_September_11_attacks

During the September 11 attacks in 2001, 2,977 people were killed, 19 hijackers committed murder–suicide, and more than 6,000 others were injured.^[1][2] The immediate deaths included 265 on the four planes (including the terrorists), 2,606 in the World Trade Center and in the surrounding area, and 125 at the Pentagon.^[3][4] The attacks remain the deadliest terrorist act in world history.^[5]

Most of those who perished were civilians except for 344 firefighters; 71 law enforcement officers who died in the World Trade Center and on the ground in New York City;^[6] another law enforcement officer who died when United Airlines Flight 93 crashed into a field near Shanksville, Pennsylvania;^[7] 55 military personnel who died at the Pentagon in Arlington County, Virginia;^[8] and the 19 terrorists who died on board the four aircraft. Of the 2,977 people who died, 2,605 were U.S. citizens and 372 non-U.S. citizens (excluding the 19 perpetrators).^[3] More than 90 countries lost citizens in the attacks,^[9] including the United Kingdom (67 deaths), the Dominican Republic (47 deaths), India (41 deaths), Greece (39 deaths), South Korea (28 deaths), Canada (24 deaths), Japan (24 deaths), Colombia (18 deaths), Jamaica (16 deaths), Philippines (16 deaths), Mexico (15 deaths), Trinidad and Tobago (14 deaths), Ecuador (13 deaths), Australia (11 deaths), Germany (11 deaths), Italy (10 deaths), Bangladesh (6 deaths), Ireland (6 deaths), Pakistan (6 deaths), and Poland (6 deaths).

A total of 2,751 victims were confirmed to have died in the initial attacks.^[10] In 2007, the New York City medical examiner’s office began to add people who died of illnesses caused by exposure to dust from the site to the official death toll. The first such victim was a woman, a civil rights lawyer, who had died from a chronic lung condition in February 2002.^[11] In September 2009, the office added a man who died in October 2008,^[12] and in 2011, a male accountant who had died in December 2010.^[13] This raises the number of victims at the World Trade Center site to 2,753, and the overall 9/11 death toll to 2,996.^[2]

As of August 2013, medical authorities concluded that 1,140 people who worked, lived, or studied in Lower Manhattan at the time of the attack have been diagnosed with cancer as a result of “exposure to toxins at Ground Zero”.^[14] It has been reported that over 1,400 9/11 rescue workers who responded to the scene in the days and months after the attacks have since died.^[15] At least 10 pregnancies were lost as a result of 9/11.^[16] Neither the FBI or New York City officially recorded the casualties of the 9/11 attacks in their crime statistics for 2001, with the FBI stating in a disclaimer that “the number of deaths is so great that combining it with the traditional crime statistics will have an outlier effect that falsely skews all types of measurements in the program’s analyses.”^[17][18]