Boy, 11, had crisscross grill marks imprinted on his body after Mercedes driven by Rebecca Grossman slammed into him at a 'high rate of speed,' coroner testifies as LA socialite wipes tears away when photos of child's mangled body were shown in court

An 11-year-old boy had crisscross abrasions imprinted on his body that matched the pattern on the front grill of the white Mercedes belonging to LA socialite Rebecca Grossman, a court has heard.

Mark Iskander was killed along with his brother Jacob, 8, after they were slammed into while crossing the road on September 29, 2020.

Wealthy socialite Rebecca Grossman, 62, is currently on trial for their murders. Dr. Matthew Miller, a forensic pathologist, told the court on Tuesday the boys' injuries were consistent with being slammed into at a 'high rate of speed.'

Grossman wept as Deputy District Attorney Jamie Castro showed enlarged graphic photos of Mark’s bruised and broken body, including his fractured skull and horribly misshapen broken right arm.

‘The pattern of the injuries is almost an exact match with the pattern of the grill,’ Dr. Miller, who was working for LA County Coroner at the time, told the court.

A coroner testified that an 11-year-old boy killed in a car crash was left with an imprint on his body which matched the grill of murder-accused LA socialite Rebecca Grossman's Mercedes grill. Pictured: Grossman (center) arrives to court with her husband Peter and their daughter

Grossman, 62, is charged with murder over the September 29, 2020 crash that killed Mark Iskander, 11, and his brother Jacob, 8

Grossman's white Mercedes SUV is pictured moments after the crash. Her legal team have argued it was her lover who hit them in his car and suggested the grill pattern could have come from his vehicle

Of Mark’s terrible injuries, which also included the ‘complete separation of his spinal cord’ plus severe other bone and pelvic fractures, Dr. Miller told the jury, ‘I would expect him to have been knocked unconscious immediately and for him to die in seconds or minutes.

‘His injuries were consistent with being struck by a vehicle traveling at a high rate of speed.’

Prosecutors showed equally disturbing blown-up photos of Jacob, his scarred and mangled corpse lying bruised and bloody. The images were so graphic several jurors looked away.

The right side of his body and scalp showed large scrapes and abrasions. Both his legs were broken and so was his pelvis. But his most serious injury was the ‘complete dislocation of his spine and skull'.

'Not many people could survive such a catastrophic injury, said Dr. Miller, adding that the few who do live, are ‘completely paralyzed’ from the neck down.

Asked by DDA Castro if Jacob’s injury, ‘was consistent with a high speed single vehicle collision, Dr. Miller answered ‘Yes.’

Dr. Miller said that Mark died from ‘blunt force traumatic injuries,’ the same cause of death he ascribed to eight-year-old Jacob Iskander.

Prosecutors believe that Grossman was traveling up to 81mph at the time of the crash.

Dr. Matthew Miller, a forensic pathologist, told the court on Tuesday the boys' injuries were consistent with being slammed into at a 'high rate of speed'

Nancy Iskander, the mother of Jacob and Mark, is seen at the Van Nuys courthouse. Grossman's attorney attempted to have her barred from the court after she began to cry during the evidence arguing her emotional display could prejudice jurors

Grossman, 62, is charged with murder over the September 29, 2020 crash that killed Jacob Iskander, 8, and his brother Mark 

Prosecutors claim she was intoxicated and racing her lover when the catastrophic collision occurred.

Grossman refutes the allegations and her defense claims it was her boyfriend, ex-pro baseball player Scott Erickson, 56 - with whom she had been drinking margaritas earlier - who hit the children in his car first.

Castro showed Dr. Miller a video re-enactment of the accident - created by Grossman’s defense team - in which Scott Erickson’s black Mercedes SUV hits both boys and Mark is thrown high in the air, then comes down on the hood of Grossman’s white SUV following behind.

The pathologist found the video ‘problematic’ because Mark’s body would be ore likely to be thrown forward by the impact, not high in the air. The video was ‘highly unlikely’ he said.

Under cross-examination by lead defense attorney Tony Buzbee, Dr. Miller admitted that he could not ‘definitively’ say that both boys weren’t hit by two vehicles.

But he added, ‘Nobody could say for certain that they WERE hit by two vehicles.’

Dr. Miller also conceded that Erickson’s Mercedes SUV has the same front grill as Grossman’s , so, said the attorney, ‘Either one could have caused the accident.’

Prosecutors called LA County Sheriff’s collision investigator and crash reconstruction expert Detective Robert Apodaca to the witness stand where he told the jury that measurements he took at the accident scene showed that Mark had been projected 254 feet forward by the impact of the collision, while Jacob was knocked 70 feet toward the right side of the road.

While prosecutors insist it was Grossman's car that hit and killed the boys, her defense team claims that it was the black SUV driven by her boyfriend, ex-pro baseball player Scott Erickson, 56 - with whom she had been drinking margaritas earlier - that was to blame

Iskander, the boys and her youngest son Zachary, 5, were crossing a marked crosswalk in Westlake Village when she looked up to see 'two SUV's barreling toward her,' she testified

He examined Grossman’s heavily damaged car and concluded that ‘Jacob had been hit by the front passenger side headlight area of the car and knocked to the side'.

‘I believe Mark was hit by the front center of the vehicle, toward the driver’s side,' he added.

Apodaca is scheduled to testify Wednesday on his own calculations of the speed Grossman’s car was traveling at, and the readings he took from her car’s ‘black box’ showing her speed just before the crash, which prosecutors claim could have been as high as 81mph.

During Tuesday's hearing, Grossman's legal team tried to get the boys' mother Nancy Iskander removed from court after she broke down during criminalist Christopher Lee's testimony about finding bloodstains on Grossman's damaged white Mercedes after the tragic crash.

Grossman's attorney John Hobson told the judge that 'perceptible displays of emotion' in front of jurors could 'effect the defendant's fundamental right to a fair trial.' 

The judge agreed but stopped short of removing the grieving mother, however she excused herself before Dr Miller's testimony began.