Robert ‘Skully Mack’ Harris Gets 3 Years for Gang Assault, Crack Deal

A New Haven man with the street alias ‘Skully Mack’ is headed to federal prison after a violent assault over a stolen handgun and selling crack cocaine. Robert Harris, 20, was sentenced today to 36 months in prison followed by six years of supervised release after pleading guilty to assault in aid of racketeering and possession with intent to distribute crack cocaine.

Harris, a known member of the Red Side Guerilla Brims (RSGB)—a violent Bloods-affiliated gang that terrorized New Haven between 2011 and 2015—was involved in a brutal December 23, 2014 attack after a man allegedly stole a .40 caliber pistol from another gang member, Christopher Graham, a.k.a. ‘Ugg.’ When Harris arrived on the scene, the victim revealed where he’d hidden the weapon. Harris retrieved it and then pistol-whipped the man in a vicious act of gang retribution.

The assault was just one count in a broader federal indictment. In June 2014, Harris sold approximately 10 grams of crack cocaine to a confidential source working with law enforcement. That single transaction, combined with his role in gang violence, landed him in federal crosshairs. On September 30, 2015, a 34-count indictment was returned against Harris, Graham, and four others, charging racketeering, firearms offenses, and narcotics distribution.

Harris has been locked up since his arrest on October 1, 2015. On February 3, 2016, he pleaded guilty to one count of assault in aid of racketeering and one count of possession with intent to distribute crack cocaine, avoiding a trial but accepting full responsibility for his actions in a gang that committed murder, armed robbery, and repeated acts of violence.

His co-defendant, Christopher Graham, also pleaded guilty to similar charges and was sentenced on August 24, 2016, to 66 months in prison and five years of supervised release. Both men were part of a sprawling federal probe targeting the RSGB’s criminal network across Connecticut and into Maine, where other members have already been convicted in state and federal courts.

The investigation was led by ATF, the New Haven Police Department, the Connecticut State Police, the U.S. Drug Enforcement Administration, and multiple regional agencies. Critical ballistics work conducted by the Connecticut State Crime Laboratory using the National Integrated Ballistic Information Network (NIBIN) helped tie weapons to crimes. The case was prosecuted by Assistant U.S. Attorneys Robert M. Spector and Peter D. Markle in Connecticut, with a related case in Maine handled by Assistant U.S. Attorney Joel Casey.