911 calls show frantic attempt to save Mount Pleasant teen's life

MOUNT PLEASANT, S.C. (WCIV/AP) -- A 16-year-old fatally stabbed a fellow student because he was upset about a Snapchat message sent to his girlfriend, according to police.

Matthew Joseph Fischer, 16, of Mount Pleasant was visiting his girlfriend's home in an upscale subdivision in the bedroom community just outside Charleston on Sunday when he saw a message from Lucas Cavanaugh, 17, on her iPod, detectives said. The message was sent through Snapchat, a photo-and-text app on which messages are visible for only a brief time.

The message angered Fischer, according to an arrest affidavit. Officials have not released details about the content of the message.

"The defendant took the iPod and contacted the victim. Words were exchanged at which point the defendant told the victim 'Come over 'and 'I'll kill you man,'" the affidavit said.

Cavanaugh, of nearby Sullivans Islands, came to the girl's house, and the two fought, authorities said.

"During the altercation, the defendant produced a knife from his right pant pocket and proceeded to stab the victim in the torso, resulting in death," the affidavit said.

An incident report released by police Tuesday describes how an officer responding to the scene found Cavanaugh lying in the middle of the street with a stomach wound and two women sitting near him.

Heart-wrenching calls to 911 on the night Lucas Cavanaugh was fatally stabbed in Park West were released Tuesday.

"Keep breathing Lucas. Keep breathing," said the caller who told dispatchers Cavanaugh was barely breathing.

The woman said she walked outside of her home on Baltusrol Lane in Mount Pleasant to find Cavanaugh bleeding severely from his abdomen around 7 p.m. Sunday.

"I'm going to stay right here with him. He's been stabbed multiple times," said the caller when dispatch asked her not to move. "I have the knife."

According to the 8-minute call, the woman somehow got her hand on the knife that was allegedly used to stab Cavanaugh. The woman was hysterically emotional for most of the call, even apologized to the dispatcher for screaming.

"Lucas baby, Lucas please Lucas, please - Lucas, Lucas, Oh God!" said the woman. "I'm so sorry. This is killing me. I can't believe this is happening."

The caller was also able to name the suspect when police and EMS arrived.

"His name is Matt Fischer. I don't know where he is. He stabbed this guy and he is gone," said the woman.

One of the women brought the officer a knife and identified it as the weapon, according to the report. The woman said a youth had come to her house with a bloody knife shortly after the incident, dropped the knife and run off.

Fischer was later arrested at the scene while sitting in his mother's car, authorities said.

Fischer is charged as an adult with murder and possession of a knife during. He was denied bond Monday. Bond was set at $100,000 on the weapons charge.

He and Cavanaugh attended Wando High School.

A memory message may be sent to the family by visiting In lieu of flowers, the family is asking that memorials be dedicated in Luke's honor to CoExist, 1054 31st Street NW, Suite 330, Washington, DC.

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