A fugitive ex-con who was grabbed Tuesday for questioning in a fatal Bronx subway shove had a 15-year rap sheet with 30 arrests — including one for trying to torch his brother’s house.  Career criminal Kevin Darden, 34, was taken into custody near his mother's Bronx home after police revealed he was also wanted for an earlier subway platform push in Manhattan.  Darden was the target of a massive police search as a “person of interest” in the Sunday morning death of Bronx resident Wai Keun Kwok, who was shoved by a deranged assailant into the path of a D train.  The innocent 61-year-old father of two died beneath the oncoming train in the 167th St. station in the Bronx as his horrified wife watched helplessly. The attacker never said a word to Kwok before the fatal push.  The 5-foot-9-inch, 190-pound Darden's picture was on posters distributed early Tuesday at the subway station where Kwok died at 8:45 a.m.  The suspect was taken into custody hours later after the victim of the Nov. 6 shove in the W. 4th St. station came forward to identify Darden as his assailant. The man had seen Darden on a video released by police.  Cops said the 51-year-old Asian man was thrown to the ground by an attacker who threatened, “Stay out of my way, I’m warning you.”  The victim in that case injured his hand and back, and was released after treatment at the New York University Medical Center, cops said.  A second victim also identified Darden as the man who robbed him inside a nearby Bronx subway station just 30 minutes before Kwok’s underground death, police said.  According to cops, Darden had at least 30 arrests that stretched from 1999 through his most recent bust for pickpocketing Nov. 9.  In 2011, he was arrested for spilling a flammable liquid throughout the Longview, Tex., home of his brother in an attempt to burn the house down, cops said.  Darden was suspected of setting an earlier blaze that destroyed another Longview home, police said.  Other charges included assault, drug possession, robbery and harassment. He did more than seven years in state prison for a 1999 robbery — including 488 days in disciplinary confinement for violent behavior along with possession of drugs and weapons.  ON A MOBILE DEVICE? CLICK HERE TO WATCH THE VIDEO.
A fugitive wanted for questioning in a pair of subway shoving incidents — including a fatal Bronx attack — was arrested Tuesday afternoon after a two-day manhunt.