LOS ANGELES, Calif. -- A photographer suffered a heart attack and died in New York City on Tuesday night - but not because of Lady Gaga, as some outlets online have reported.The star walked the runway in yet another wild outfit at Cipriani 42nd Street on Monday night, causing online reports that celebrity photographer A.J. Sokalner suffered a heart attack after spotting her - which a source at his agency, ACE Pictures, strenuously denied to Access Hollywood on Wednesday.