Violent felon given wrist slap in machine-gun case accused of gun attack on Hayes Valley street
A felon given a 16-month wrist slap after being found with a machine gun, just months after being released from prison after opening fire on two people, is back behind bars accused of pistol-whipping a man and a woman in an “unprovoked” attack on a San Francisco street.
Prosecutors say Dequan Marshall launched his assault in the small hours of Sunday November 1 in the Hayes Valley neighborhood after he and a female companion became embroiled in a quarrel.
“[Marshall] engaged in an unprovoked assault following a dispute over victim’s vehicle stopping in the roadway on Fell Street,” wrote assistant district attorney Rebecca Warren in a motion to detain.
Marshall’s female companion exited the Honda they were riding in and began the violence by kicking one victim in the stomach.
“[The defendant] struck victim one in the head with a firearm and then struck victim two in the face with the same weapon, causing injuries to both victims,” Warren added.
Police tracked Marshall down to the roof of 455 Fell Street. While they did not find the gun, a search of a home in the apartment complex turned up a loaded 9mm magazine, other ammunition and a pistol laser sight.
Marshall, 29, has already been ordered released by a San Francisco judge but remains in custody because of an open federal warrant.
Marshall left federal prison last year after serving a 16-month sentence for being a felon in possession of a firearm while on parole.
SFPD officers pulled him over on February 22 2023 after he sped through a four-way stop. He tried to hide his identity, then fled on foot before being caught. A Glock 19 handgun, equipped with an automatic fire switch and an extended magazine loaded with 30 rounds, was found on the driver’s side floor.
He had been released from prison four months earlier, having been convicted of ‘assault with a firearm’ in San Francisco after he tried to kill two people in 2017. While in prison, prosecutors say, he “viciously” beat another inmate.
Although federal prosecutors presciently described him as “a violent recidivist who is not amenable to supervision and who continues to pose a danger to the community,” and he had already been jailed again for repeatedly violating his pretrial release, U.S. District Judge Trina Thompson rejected their request for 41 months and decided to give him a break.

“The court is prepared to use a variance and the statement of reasons have already been provided,” said Biden appointee Thompson, “including the fact that he has not had guidance as a youth and that he was making progress with regard to post-release supervision.”
Although a San Francisco judge ordered his release this week, Marshall remains in custody, due to an open federal arrest warrant relating to accusations that he violated the terms of his supervised release.
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