This is a sketch of the Man on the Grassy Knoll by Houston PD Lois Gibson as described by witnesses Malcolm Summers.
Malcolm Summers ran to the knoll moments after the shooting. He related the following in the 1988 documentary Who Murdered JFK?:
“I ran across the–Elm Street to right there toward the knoll. It was there [pointing to a spot on the knoll]–and we were stopped by a man in a suit and he had an overcoat–over his arm and he, he, I saw a gun under that overcoat. And he–his comment was, “Don’t you all come up here any further, you could get shot, or killed,” one of those words. A few months later, they told me they didn’t have an FBI man in that area. If they didn’t have anybody, it’s a good question who it was. ” (Anderson 14)
Michael T. Griffith, 1996
JFK Assassination Witness Summers Dies at 80
Mon Oct 18, 2004
DALLAS (Reuters) – Malcolm Summers, one of the closest eyewitnesses to
the John F. Kennedy assassination, has died of a heart ailment at age
of 80, a funeral home said on Monday.
Summers heard Jacqueline Kennedy and Texas Gov. John Connally scream
from the presidential limousine as it rolled through Dealey Plaza in
Dallas on Nov. 22, 1963.
Summers, who was just a few yards from the incident, can be seen on the
famous movie of JFK assassination shot by amateur photographer Abraham
Zapruder as the man diving to the ground as the shots rang out.
“I heard Connally say, ‘They’re going to kill us all!” or ‘shoot us
all!’ I’m not sure which one on that deal. And then, I heard Jackie
Kennedy scream out, ‘Oh, God! No, no, no!’ And it was a shrill. It was
very sad to hear that when you think back,” Summers said in an oral
history recorded by the Sixth Floor Museum — a Dallas museum dedicated
to the JFK assassination.
Summers told police in a deposition at the time of the assassination he
thought someone had set off a firecracker and hit the ground when he
realized shots were being fired.
Conspiracy theorists, who do not believe accused presidential assassin
Lee Harvey Oswald acted alone, have cited Summers as saying he saw
suspicious characters in the Dealey Plaza area.
Summers was born in Dallas and died on Oct. 8.