BOSTON (CBS/AP) — The prosecution’s star witness against Aaron Hernandez in his double-murder trial wrapped up testimony following a fourth day on the stand.

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Testimony Wednesday was full of testy exchanges between lead defense attorney Jose Baez and witness Alexander Bradley.

Baez has grilled Bradley about his claim that Hernandez killed two men after one of them accidentally spilled his drink on the former New England Patriot at a Boston nightclub in July 2012.

Alexander Bradley and Aaron Hernandez’s defense attorney Jose Baez on March 23, 2017. (WBZ-TV)

On Thursday, Bradley concluded his testimony after brief redirects from prosecution and defense attorneys.

Bradley and Hernandez were once close friends. Hernandez is also charged with witness intimidation and accused of shooting Bradley in the face because he feared Bradley would tell authorities about the murders.

Text messages between Bradley and Hernandez were shown to the court Thursday, including one where Bradley discusses his lawsuit threat against Hernandez.

In one message, Bradley says he would watch as the news hit televisions, adding that Hernandez could “have fun explaining that” to Bill Belichick and the Patriots.

Bradley said Hernandez opened fire from his SUV while Daniel de Abreu and Safiro Furtado waited in a car at a stoplight in the South End.

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Baez contended during opening statements that Bradley — not Hernandez — shot the men over a drug deal.

After Bradley completed his testimony, prosecutors call the woman Bradley calls “my daughter’s mother,” Brooke Wilcox, to the stand. Hernandez and Bradley went to her home in Connecticut directly after the murders.

Brooke Wilcox, the mother of Alexander Bradley’s child. (WBZ-TV)

Wilcox said that a day after the double murder, Bradley “didn’t sound normal like he normally does. He was rushed.”

She added that Bradley told her, referring to Herandez, “this crazy motherf—– just did some stupid s—.”

Wilcox testified that Hernandez borrowed her laptop and left a page up with a news report about a Boston shooting.

Hernandez is already serving a life sentence for the 2013 murder of Odin Lloyd.

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(© Copyright 2017 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)

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WBZ NewsRadio 1030’s Bernice Corpuz reports