NEW YORK (1010 WINS) -- The NYPD is searching for a homeless man for questioning in the stabbing of a Bronx man found dead in the stairwell of his apartment building.Officials say 30-year-old Terrance Caudle is suspected in the killing O’Brian Maxwell, also 30, who was stabbed several times in the neck in his home on White Plains Road.A 911 call and a trail of blood led police to find Maxwell, in the fourth-floor stairwell of the building.