He's accused of unleashing a fusillade of deadly gunfire at a Tacoma, Wash., convenience store and then fleeing the scene on a skateboard.
Now, federal authorities say Robert Deshawn Grott, 29, has escaped to Los Angeles and residents should watch out.
"Robert Grott should be considered armed and dangerous and should not be approached," the FBI said. "The gun used in the homicide has not been recovered."
Grott is accused of killing 23-year-old Julian Thomas on Monday, after firing 46 rounds into and around the victim's car at an AM/PM convenience store. Thomas was struck more than 10 times, according to the Pierce County prosecuting attorney's office.
Authorities believe the shooter reloaded twice before rolling away on a skateboard. Prosecutors say he was then followed by two bystanders.
According to prosecutors, Grott's mother reviewed surveillance footage and confirmed that the shooter was her son. She told investigators that she and her son were involved in a dispute over a missing or stolen handgun several months ago.
After searching Grott's home, police found a case for a Glock 9-millimeter pistol with casings similar to those found at the shooting, prosecutors said.
Grott's mother, who lives in California, told Tacoma police she was aware that her son was wanted in connection with the slaying, prosecutors said. She reportedly told authorities that her son was likely headed to California with a younger brother who has a car.
On Thursday, the suspect's brother -- Rashaad Dominique Grott, 22 -- turned himself over to deputies in West Hollywood, according to the Los Angeles County Sheriff's Department. He told authorities that he drove his brother from Tacoma to Los Angeles, the Sheriff's Department said.
He is charged with helping his brother flee the state, prosecutors said.
The FBI said Robert Grott spent the night at a hotel in downtown Los Angeles on Tuesday. He is wanted on suspicion of murder and fleeing to avoid prosecution.
Anyone with details about Robert Grott's whereabouts is urged to call 911.
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