By Emily Turner

SAN RAFAEL (KPIX 5) — Testimony was heard from the star witness – and former co-defendant – Tuesday in the case against a pair of drifters charged with two Bay Area murders.

“That was obscene. That’s all I have to say,” said attorney Amy Morton of Sean Angold’s testimony.

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Morton is representing the defendant Lila Allligood.

“On cross examination you’ll see what a liar he is,” Morton said.

Angold is the third suspect in the Marin County murder of Steven Carter. He’s now testifying against Alligood and Morrison Lampley as part of a plea deal.

The prosecution wouldn’t talk on camera and argued against cameras in court for fear of Angold’s safety in jail.

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In Angold’s teary testimony, he told the court he’d watched Lampley shoot both Audrey Carey, the Canadian backpacker in Golden Gate Park, and Steven Carter, the hiker in Fairfax.

When Morton was asked what she was going to ask Angold when she cross examines him, she replied, “oh about every other lie that he told.”

During cross examination the defense went after Angold’s testimony, highlighting all the times he’s lied to investigators, been on drugs and changed his story. Then the defense cited his plea deal with the prosecution as a possible motive for more lies, hoping those questions could plant a reasonable doubt in jurors’ minds about who actually pulled the trigger.

“That’s clearly the big lie. He’s putting himself in a passive position. That’s not the way it went down,” Morton said.

Morton said Angold’s doing all this to save his own neck.

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Angold has agreed to testify in exchange for a 15 year sentence, but that’s contingent on whether the prosecution believes his testimony is truthful.