GREENWICH, Conn. (AP) _ A chauffeur charged with conspiracy to commit murder said Monday that he did not kill a wealthy developer found stabbed to death in 2006 just days before he was to plead guilty in a multimillion-dollar fraud case.

Driver Carlos Trujillo, 47, and his cousin, Leonard Trujillo, 21, were arrested in connection with the death of Andrew Kissel.

Kissel, 46, was found tied up and fatally stabbed in his Greenwich mansion in April 2006.

As Greenwich detectives led Carlos Trujillo out of police headquarters in shackles Monday morning, a reporter asked if he killed Kissel.

``No I didn't,'' he replied.

He later pleaded not guilty in Stamford Superior Court to one count of conspiracy to commit murder and was ordered held on $1 million bond until his next court appearance April 3.

``I can emphatically state he has maintained from day one he had nothing to do with this,'' said Carlos Trujillo's attorney, Lindy Urso, who said he does not believe the cousins knew each other well. ``It's hard for me to believe this guy committed a murder.''

Leonard Trujillo appeared Monday morning in Worcester District Court in Massachusetts, where he signed paperwork agreeing to return to Connecticut to face charges of murder and conspiracy to commit murder. He is being held without bond on a fugitive from justice charge and will return to court Tuesday so Connecticut authorities can pick him up.

The arrest warrants are sealed and Greenwich police will not comment on a motive, saying the investigation is still open.

Among the theories investigated, Greenwich Police Chief David Ridberg said, was that Kissel's death was a suicide-for-hire. He said research showed that such killings are extremely rare, but he did not rule it out.

``If it ends up being the case, that's fine,'' he said. ``If it doesn't end up being the case, that's fine too.''

Urso dismissed that scenario.

``I don't think they ever really believed that,'' he said. ``It's my understanding the police don't believe that theory at all.''

Urso said Trujillo, a native of Colombia, is a lawful permanent U.S. resident. Urso called his client ``the easiest suspect.'' He said Greenwich police had Trujillo's nephew deported and tried to ``strong arm'' his relatives, but stopped short of accusing authorities of unethical behavior.

``I wonder if Leonard had enough problems of his own where he was susceptible to being pressured into giving false testimony against Carlos,'' Urso said. ``But we'll have to wait and see.''

Ridberg rejected the suggestion, saying Trujillo's nephew was a criminal.

Ridberg said officers from several states and federal agencies did hundreds of interviews in the case. Ridberg also would not explain the timing of the arrests.

``There was no particular 'aha' moment that led to the arrests,'' Ridberg said. ``There is no particular thing that put it over the edge.''

Carlos Trujillo, the last person to see Kissel alive, had been interviewed by police several times and had given them samples of his DNA, fingerprints and some personal documents, Urso has said.

``He was very close to Andrew,'' Urso said. ``At the end, I think nobody was closer.''

Carlos Trujillo was arrested late Friday when Greenwich and Stratford police and federal Drug Enforcement Agency agents stopped his car on Route 1 in Stratford. His cousin was arrested Saturday at his Worcester home.

Leonard Trujillo's mother was in court in Worcester but declined comment. Court-appointed attorney Michael O'Dougherty, representing Trujillo only on the fugitive charge, said his client has a wife and two toddlers and is unemployed.

Worcester Police Sgt. Kerry Hazelhurst said Trujillo has no prior history with his department.

``We'd had him under surveillance and were just waiting to get the word from Connecticut to pick him up,'' Hazelhurst said.

Kissel's brother, Robert, was a wealthy banker whose wife was convicted of murder in Hong Kong in September 2005 and sentenced to life in prison after feeding him a milkshake laced with drugs and then beating him to death in November 2003.

Andrew Kissel and his estranged wife, Hayley, had cared for Robert Kissel's three children until they were handed over to the custody of a relative, who lived near Seattle. Andrew and Hayley Kissel had two children of their own.

The couple's divorce was heating up before he was killed, court records show. In divorce papers, Hayley Kissel had accused her husband of being a belligerent alcoholic.

Kissel's criminal cases were pending in federal and state courts in New York at the time of his death. The federal case charged him with real estate fraud and state prosecutors charged him with grand larceny, alleging he stole nearly $4 million from his Manhattan apartment cooperative.

Kissel also was being sued by a former business partner.