奧蘭多槍手馬丁的性取向隨着調查進展漸變得迷離，有迹象顯示他可能是同性戀者，過着雙面生活。FBI探員表示，最少4人報稱馬丁是肇事同志夜總會「脈搏」常客，還有同性舊同學聲稱馬丁想與之拍拖。馬丁的前妻則認為，他是因為對自己的身分感到混亂，而非因為是伊斯蘭極端主義者。
熟客史密斯稱在「脈搏」見過槍手馬丁不下十回。另一熟客卡倫稱，馬丁光顧該店最少3年，還見過馬丁在店內持刀指向一個朋友。
此外，馬丁還被指曾用同性戀交友應用程式Grindr和Jack’d和男人聊天。男子塞德尼奧稱曾在「脈搏」店內遇過馬丁幾次，又稱馬丁曾通過約會應用程式接觸他，不過他覺得馬丁「令人發毛」，所以「封鎖」他。另一男子韋斯特也表示曾與馬丁用同性戀應用程式通訊一年。
馬丁的匿名舊同學推測馬丁是男同性戀者。他指2006年他們就讀印第安河社區學院刑事司法課程時，偶爾也會去同志夜店，馬丁甚至希望和他有個「浪漫約會」。該舊同學稱，當時未想「出櫃」，所以拒絕馬丁。
另外，馬丁自2009年婚後到再婚生子一直居住的寓所曝光。英國《每日郵報》報道所見，屋內到處貼有家庭照，又有美式偶像和玩偶，如蜘蛛俠、《星球大戰》、米奇老鼠等陳設。客廳一隅放置健身器材，電視機下擱着一把大劍。
There are mounting claims that Omar Mateen was gay and looking to hook up on apps and in clubs — but it appears he was also actively hitting on women … a strong sign of a possible struggle with his sexuality.
Cord Cedeno says he connected with Mateen a couple years ago on Grindr, but it was hardly titillating. Cedeno says Mateen — whose profile was a pic of him in a tie — would only say “Hi” over and over. He says he eventually blocked Mateen, but knows 4 friends who say the Orlando murderer remained active on other apps.
He says Mateen used Adam4Adam to send shots of his penis to men — but never showed his face. Cedeno says he has no knowledge Mateen was ever successful in hooking up with a man.
On the other hand … a female user on Plenty Of Fish says Mateen reached out to her 18 months ago. She says he was “nice, normal … mentioned he had a child, but said he was single and looking for a good woman to marry.”
She told us Mateen never said anything about being into men, but did rant about Islam and the Quran … saying people misunderstood his religion. She says he wanted to meet face-to-face, but she too blocked him because he seemed “emotionally unstable.”
The FBI says it’s investigating Mateen’s potential activity on gay apps, and reports he’d visited Pulse multiple times before Sunday morning’s killings.