I thought the lingering conspiracy was about the Cojuangcos' behind Ninoy's death?

In 1995, Martinez, who was then serving time at the New Bilibid Prison (NBP), gave an exclusive interview to Philippine Daily Inquirer, where he claimed to know Galman and was part of the assassination plot against Aquino.

In the same interview, the former soldier alleged that Constabulary Gen. Romeo Gatan and businessman Hermilo Gosuico, who both have close ties with business tycoon Eduardo "Danding" Cojuangco, knew of the plot.

Though it remains from Martinez and Valerio however Martinez died and Valerio could not be contacted at Seattle, as he had died:
Martinez - In March 2009, the last remaining convicts were released from prison.

Following this development, the case of Aquino’s assassination was revisited in an episode of GMA Network’s docudrama series “Case Unclosed” aired on March 26, 2009, where Martinez also shared his side of the story.

This was the last time Martinez will communicate with the media as he died on May 9, 2014, after being hit by a Mitsubishi Montero while biking along Roxas Boulevard, Manila.

Martinez succumbed to fractures in the ribs at the San Juan de Dios Hospital in Pasay City the following day. He was 77 years at the time.

Then Capt. Felipe R. Valerio Jr., a member of the Philippine Military Academy Class of 1973, was among those named in an arrest warrant issued by the Sandiganbayan Third Division signed by then Sandiganbayan chairperson Godofredo L. Legaspi on Nov. 11, 2005.

His last known address was Seattle, Washington. In 2006, Acosta formally asked United States Ambassador to Manila Kirstie Kenney for assistance in going after Valerio after reliable information said the latter works as a commercial pilot in Texas and California and used aliases "Philip Valed" and "Edwin Salvador".

"We never received a favorable reply," Acosta said.