Lead defense attorney Brian McMonagle's final argument swung wildly from whispered portrayals of Cosby and Constand's "romantic" relationship to exasperated shouts, urging jurors that Constand's misstatements to police - including about the date of the night in question - must create doubt about Constand's accusations that Cosby committed sexual assault.
On Monday, for the first time, Cosby, 79 and almost blind, was accompanied to court by his wife of more than 50 years, Camille. But on Monday morning, Cosby, under oath, told Judge O'Neill emphatically that he has chosen not to testify in this case. Steele repeatedly brought up those depositions during his closing argument, saying Cosby's own words prove he had "knowledge" about the drugs he was "administering".
The lawyer emphasized that criminal charges were put into motion by attorneys in a previous civil lawsuit that offered no evidence of guilt.
Before the jury had even been seated for the day, Cosby told Montgomery County Judge Steven T. O'Neill that he agreed with his lawyers' decision to keep him off the witness stand.
Jurors at Bill Cosby's sexual-assault trial don't know if they'll hear from him in person when the defense starts presenting its case Monday.
The brevity of the defense case contrasted with the presentation by prosecutors, who called 12 witnesses over five days of often emotional testimony. She spent almost seven hours on the stand over two days, as Cosby's attorneys attempted to undermine her credibility. In a six-minute appearance on Monday, Mr Shaffer told jurors under defence questioning that Ms Constand had visited with Cosby at an out-of-state casino and that police knew he had vision problems more than a decade ago.
Cosby says he gave Constand a cold and allergy medicine to help her relax. She slipped into the courtroom while the judge was addressing the attorneys, and many in the audience had their heads turned.
He said Constand told police in her first interview that she had never been alone with Cosby before the alleged attack, but later admitted she had spent time alone with him at his home and at a CT casino resort. Topping it all off was the obligatory gesture towards pop-cultural relevancy with "This is all the media's fault", as McMonagle gestured around the courtroom at the reporters and Cosby accusers sitting in the audience while banging the back of his chair and repeating, "banging the drum, banging the drum".
He noted Cosby's familiarity with the effects of Quaaludes - which he had previously said he had administered to women he wanted to have sex with, according to his 2005 civil deposition - as well as Benadryl, which he claimed he gave to Constand.
Dozens of women have come forward to say he had drugged and assaulted them.
The defence has rested after a single brief witness in Bill Cosby's sexual assault trial.
Cosby is charged with sexually assaulting a woman at his suburban Philadelphia home in January 2004. When she tearfully took the stand to point the finger at Cosby, she recounted a tale eerily similar to that of Andrea Constand.
Bill Cosby's wife, Camille, has arrived at court with him on the sixth day of his sexual assault trial.
The defence opens it case Monday.
Among other admissions, Cosby said in that deposition that he acquired drugs to give to women he sought for sex; McMonagle asked no questions about that on cross-examination, apparently wanting to move past talk about giving drugs to women. Cosby had said before the trial he would not testify. Throughout the course of her testimony, she admitted that there had been some minor inconsistencies in her earlier police statements, a fact that the Cosby defense latched onto and attempted to exploit to their maximum benefit.
Cosby's spokesman says the 79-year-old actor may testify, but his lawyers remain mum.