The three-week trial of the 21-year-old Dorchester man charged with the murders of three members of a rap group and their friend in their Bourneside St. basement studio could wrap up this week.

Calvin Carnes is accused of shooting Jason Bachiller, 21; Jihad Chankour, 22; Edwin Duncan, 21; and Christopher Vieira, 19, in December 2005. Prosecutors charge that Carnes was attempting to steal Vieira's Glock 9mm, along with an AK-47 rifle and a 12-guage shotgun, and point to his fingerprints on Vieira's car.

Co-defendant Robert Turner, 19, pleaded guilty to all charges earlier this year, and did not get a deal or agreement from prosecutors, according to Suffolk District Attorney Daniel Conley's office. Prosecutor Josh Wall said Carnes's alibi of selling marijuana at a Florida St. home was contradicted by another witness. "The killer is in this courtroom, and he's right in front of you," Wall told jurors.

Trial set to start in '04 Msgr. Lydon Way slaying

The retrial of two men - one from Dorchester and the other from Roxbury - accused of killing a Dorchester woman and her roommate gets underway again this week. Quincy Butler and William Wood, both 34, are charged in the fatal stabbing of 49-year-old Betsy Tripp in her Monsignor Lydon Way home. Prosecutors say that four years ago, the two men, who are currently being held without bail, slit Tripp's throat and shot her roommate in the face after stealing $40 from Tripp. A Suffolk Superior Court judge in April declared a mistrial because the jury was deadlocked.

Dot man charged in Memorial Day car death

A 25-year-old Dorchester resident is being held on $1,000 bail in connection with the Memorial Day death of his front seat passenger in a Charlestown crash. Erix Santiago was charged this week with the motor vehicle homicide of 26-year-old Erroll Barrett, also of Dorchester. He is due back in court on July 18.

Santiago was arraigned in Charlestown District Court on Monday, according to Suffolk County District Attorney Dan Conley's office. Prosecutors allege that at 2:45 a.m., Santiago sped down Rutherford St. at 72 miles per hour in his 1994 Honda Civic, hitting a curb, flipping over several times and then striking several street light poles. One of the poles penetrated the front passenger seat, where Barrett was sitting. Medical staff allegedly found that Santiago was drunkenly driving, with a blood alcohol level of .24 percent.

Prison term ahead for Columbia Rd. bandit

A Dorchester man on Monday received a 12-year prison term after pleading guilty to a number of armed robberies from last summer. Alan "Bubba" Daughtry, 37, will also get 10 years of probation. Suffolk County prosecutors alleged that Daughtry commtted five robberies, including Truly Jorg's Patisserie at Commonwealth Hotel in Kenmore Square; Sarni's Cleaners on Cambridge St.; Papyrus, a Summer St. stationery store; a Kenmore Square City Convenience Store; and Famous Footwear at the South Bay Shopping Center.

Prosecutors initially believed fellow Dorchester resident Paul Cromwell was to blame for the Truly Jorg robbery, but his case was dropped after further evidence surfaced. Daughtry robbed Famous Footwear on July 9, 2007, carrying a shoulder bag with a gun. He took an undetermined amount of money from the store safe and fled the scene, according to Suffolk District Attorney Dan Conley's office. Witnesses identified Daughtry and police later arrested him at his Columbia Rd. residence.