One of the big questions that came out of this week’s testimony from the key witness in a quadruple killing is how credible the jury would find him.
Yesterday, a Suffolk prosecutor sought to buttress the statements of Kimani Washington, who participated in the robbery that led to the homicides, by putting his younger brother on the stand.
Charles Washington, 31, began testifying yesterday against his cousin, Edward Washington, and Dwayne Moore, who are charged with first-degree murder.
They are accused of killing Simba Martin, 21, his girlfriend, Eyanna Flonory, her 2-year-old son, Amanihotep Smith, and Martin’s house guest, Levaughn Washum-Garrison, 22.
Yesterday, Charles Washington said the two defendants and Kimani Washington were together in the hours leading up to the shootings.
He said he and the three men were drinking at Charles Washington’s mother’s home on Fowler Street.
“Then they left,’’ Charles Washington said.
Kimani Washington spent three days on the stand in Suffolk Superior Court, where he testified that he, Moore, and his cousin went after midnight to Martin’s Sutton Street home to rob him of cash and drugs.
Edward Washington was recruited to drive them to Martin’s home and obtain one of the guns in the crime, according to the testimony.
The car belonged to Charles Washington, his brother has said.
Yesterday, Charles Washington confirmed he let his cousin borrow the car because his brother had been drinking heavily that night.
“I didn’t want him with my car,’’ Charles Washington said.
Defense lawyers, who had fierce exchanges with Kimani Washington, a 36-year-old career criminal they said is lying to save himself, are expected to go hard after his brother.
John Amabile, Moore’s lawyer, said in his opening statements that Charles Washington’s fingerprint was found on one of the three guns used during the robbery.
Charles Washington, who said he was also smoking marijuana the night before the shootings, appeared to be a reluctant witness.
When Assistant District Attorney Edmond Zabin asked him about a conversation the witness had allegedly overheard between Kimani Washington and Moore in the hours before the shooting, he said he did not remember.
Zabin showed Charles Washington a transcript of grand jury testimony the witness had given about that conversation.
Zabin asked him if it refreshed his memory. Washington said yes, but then gave a vague description of the conversation.
“Something getting back to Kimani or something like that,’’ he said.
Before Charles Washington took the stand, Jessica Grivalsky, a criminal intelligence analyst, testified to phone records that suggested where the cellphones of Moore and Kimani Washington were at the time of the killings.
After midnight on Sept. 28, a cell tower close to Martin’s home on Sutton Street picked up signals from Moore’s phone, Grivalsky said. Kimani Washington has testified that Moore called Martin before the killings began.
Prosecutors have said Moore was trying to lure Martin out of his home.
At 1:32 a.m., more than 20 minutes after the shootings, a call was made from Moore’s phone to Kimani Washington’s phone, Grivalsky said. A cell tower close to Washington’s home on Fowler Street picked up the signal. Kimani Washington has said he went back to Fowler Street after the robbery, before the killings began.
Defense lawyers have stressed that the records do not show the exact locations of where the calls were made. They show only the location of the cell tower that picked up their signals.
Charles Washington is expected to return to the stand on Monday.
His testimony was cut short yesterday afternoon when Judge Christine McEvoy called an early recess.
One of the jurors needed to leave early for a family emergency, McEvoy said.