A Killer's Wild Run After the Ambush Of a Police Officer
Officials say murder of Long Branch, NJ, Detective Patrick A King was cold-blooded assassination of police officer targeted at random; investigators seek to untangle and reconstruct trail of carnage and terror of one-man crime wave through northern New Jersey; two central questions remain: identity of assailant and his motive for killing officer; Asbury Park Press reports that gunman was Roberto Perez, 32, who moved to Long Branch earlier this year; newspaper says Perez was upset over breakup of relationship and had swallowed woman's gold wedding band and photo before shooting himself to death; ring and photo of woman and two young children are discovered during autopsy; photos; chronology of rampage (M)
