Write the last sentence in this story.

Washington (CNN) -- A Pentagon official said he believes the shooting early Tuesday at the U.S. Defense Department headquarters was a "random incident." "We are looking at all the possibilities," Steven E. Calvery, director of the Pentagon Force Protection Agency, said at a news conference late Tuesday morning. "What we have is an isolated incident, so far." Pentagon police officers, as well as several construction workers in the area, heard at least five shots fired around 4:50 a.m., Pentagon officials said. As of midday Tuesday, authorities had discovered two bullet fragments in third- and fourth-floor windows on the south side of the building, said Calvery. That part of the Pentagon was empty at the time of the shooting, as it is in the process of being renovated. The bullets shattered but did not go through the windows, which are bulletproof, according to Calvery.

Asked if there were any ties between that and the

OPTIONS:
- CNN shootings, a law enforcement official said that "except for the similarity in the incidents -- windows shot out at military facilities -- there is nothing to connect these incidents at this point."
- Calvery shootings, a law enforcement official said that "except for the similarity in the incidents -- windows shot out at military facilities -- there is nothing to connect these incidents at this point."
- Marine Museum shootings, a law enforcement official said that "except for the similarity in the incidents -- windows shot out at military facilities -- there is nothing to connect these incidents at this point."
- Pentagon shootings, a law enforcement official said that "except for the similarity in the incidents -- windows shot out at military facilities -- there is nothing to connect these incidents at this point."
- Pentagon Force Protection Agency shootings, a law enforcement official said that "except for the similarity in the incidents -- windows shot out at military facilities -- there is nothing to connect these incidents at this point."
- Steven E. Calvery shootings, a law enforcement official said that "except for the similarity in the incidents -- windows shot out at military facilities -- there is nothing to connect these incidents at this point."
- U.S. Defense Department shootings, a law enforcement official said that "except for the similarity in the incidents -- windows shot out at military facilities -- there is nothing to connect these incidents at this point."
- Washington shootings, a law enforcement official said that "except for the similarity in the incidents -- windows shot out at military facilities -- there is nothing to connect these incidents at this point."
Pentagon shootings, a law enforcement official said that "except for the similarity in the incidents -- windows shot out at military facilities -- there is nothing to connect these incidents at this point."
Skriv den sista meningen i den här berättelsen. Washington (CNN) -- En Pentagon-tjänsteman sade att han tror att skottlossningen tidigt på tisdagen vid USA:s försvarsdepartements högkvarter var en "slumpmässig incident". "Vi tittar på alla möjligheter", Steven E. Calvery, chef för Pentagon Force Protection Agency, sade på en nyhetskonferens sent på tisdag morgon. "Det vi har är en isolerad incident, hittills." Pentagons poliser, liksom flera byggnadsarbetare i området, hörde minst fem skott avlossade runt 04:50, sade Pentagons tjänstemän. Från och med mitt på tisdagen hade myndigheterna upptäckt två kulfragment i tredje och fjärde våningens fönster på södra sidan av byggnaden, sade Calvery. Den delen av Pentagon var tom vid tiden för skottlossningen, eftersom den håller på att renoveras. Kulorna krossades men gick inte in genom fönstren, som är skottsäkra, enligt Calvery. Frågade om det fanns några band mellan det och Alternativen: - CNN-skjutningar, en brottsbekämpande tjänsteman sade att "med undantag för likheten i incidenterna -- fönster som skjutits ut på militära anläggningar -- det finns inget som kopplar ihop dessa incidenter vid denna punkt." En polisman sa att "utom likheten i incidenterna -- fönster som skjutits ut på militära anläggningar -- finns det inget som kan koppla samman dessa incidenter just nu." - Marinmuseiskjutningar, en polistjänsteman sa att "förutom likheten i incidenterna -- fönster som skjutits ut på militära anläggningar -- finns det inget som kopplar samman dessa incidenter just nu." - Pentagons skottlossning, en polistjänsteman sa att "utom likheten i incidenterna - fönster som skjutits ut på militära anläggningar - det finns inget som kan koppla samman dessa incidenter just nu." - Pentagon Force Protection Agency skjutningar, en brottsbekämpande tjänsteman sade att "med undantag för likheten i incidenter -- fönster som skjutits ut på militära anläggningar -- det finns inget som kopplar samman dessa incidenter just nu." Steven E. Calvery-skjutningar, en polistjänsteman sa att "förutom likheten i incidenterna -- fönster som skjutits ut på militära anläggningar -- finns det inget som kan koppla samman dessa incidenter just nu." - Amerikanska försvarsdepartementets skottlossningar, en polistjänsteman sa att "med undantag för likheten i incidenterna -- fönster som skjutits ut på militära anläggningar -- finns det inget som kopplar ihop dessa incidenter just nu." En polisman i Washington sa att "förutom likheten i incidenterna -- fönster som skjutits ut på militära anläggningar -- finns det inget som kan koppla samman dessa incidenter just nu."
Write the last sentence of this story. Washington (CNN) -- A Pentagon official said he believes the shooting early Tuesday at U.S. Department of Defense headquarters was a "random incident". "We look at all the possibilities," Steven E. Calvery, head of the Pentagon Force Protection Agency, said at a news conference late Tuesday morning. "What we have is an isolated incident, so far." Pentagon police officers, as well as several construction workers in the area, heard at least five shots fired around 4:50 a.m., Pentagon officials said. As of mid Tuesday, authorities had discovered two bullet fragments in the third and fourth floor windows on the south side of the building, Calvery said. That part of the Pentagon was empty at the time of the shooting, as it is being renovated. The bullets were crushed but did not enter through the windows, which are bulletproof, according to Calvery. Asked if there were any ties between it and the Options: - CNN shootings, a law enforcement official said that "with the exception of the similarity of the incidents -- windows pushed out at military facilities -- there is nothing connecting these incidents at this point." A police officer said that "except the similarity of the incidents -- windows pushed out at military facilities -- there's nothing that can connect these incidents right now." Marine museum shootings, a police official said that "except for the similarity of the incidents -- windows pushed out at military facilities -- there's nothing connecting these incidents right now." - The Pentagon shooting, a police official said that "except the similarity of the incidents - windows launched at military facilities - there is nothing that can connect these incidents right now." - Pentagon Force Protection Agency shootings, a law enforcement official said that "with the exception of the similarity of incidents -- windows pushed out at military facilities -- there's nothing connecting these incidents right now." Steven E. Calvery shootings, a police official said that "except for the similarity of the incidents -- windows pushed out at military facilities -- there's nothing that can connect these incidents right now." - U.S. Department of Defense shootings, a police official said that "with the exception of the similarity of the incidents -- windows pushed out at military facilities -- there's nothing connecting these incidents right now." A Washington police officer said that "except for the similarity of the incidents -- windows pushed out at military facilities -- there's nothing that can connect these incidents right now."
Pentagons skottlossningar, en polistjänsteman sa att "utom likheten i incidenterna -- fönster som skjutits ut på militära anläggningar -- det finns inget som kopplar samman dessa incidenter just nu."
Pentagon shootings, a police official said that "except the similarity of the incidents -- windows pushed out at military facilities -- there's nothing connecting these incidents right now."