Washington (CNN) A nurse has been charged in the death of H.R. McMaster Sr., the father of President Donald Trump's former national security adviser, and could face up to 20 years in prison if she's convicted of failing to provide adequate care after he suffered a fall. 
 
 McMaster Sr., 84, was a patient at the senior living facility Cathedral Village in Philadelphia when he was found dead on the morning of April 13 of blunt impact head trauma, according to the Philadelphia Department of Health. A week later, Philadelphia police told CNN it was investigating McMaster Sr.'s death as "suspicious." 
 
 McMaster Sr. is the father of H.R. McMaster Jr., who served as Trump's national security adviser from February 2017 until early April, when he handed over his duties to John Bolton. 
 
 The elder McMaster died about eight hours after he had an unwitnessed fall in his room on the night of April 12, Pennsylvania Attorney General Josh Shapiro said. Staff discovered him on the floor bleeding from a small cut on the side of his head, after which the licensed practical nurse, Christann Gainey, directed that he be put in a wheelchair and taken out to the lobby. Staff found him there, dead, the next morning, Shapiro said. 
 
 Gainey, who was contracted at the facility, failed to perform the required eight neurological checks that would have saved his life, Shapiro said. 
 
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 PHILADELPHIA (AP) — The Latest on charges filed in the death of President Donald Trump's former national security adviser's father (all times local): 
 
 3:40 p.m. 
 
 A nurse intends to plead not guilty in the death of President Donald Trump's former national security adviser's father at a Philadelphia senior care facility, her lawyer says. 
 
 Thirty-year-old Christann Shyvin Gainey was charged Thursday with involuntary manslaughter, neglect and records tampering in H.R. McMaster Sr.'s death. 
 
 McMaster died April 13, about eight hours after falling and hitting his head at the Cathedral Village retirement community. 
 
 Gainey's attorney, Sharon Piper, says she will plead not guilty. The lawyer declined further comment, as did Gainey's employer, General Healthcare Resources of Plymouth Meeting. 
 
 McMaster's son, H.R. McMaster Jr., served as Trump's national security adviser from February 2017 until he resigned in March. 
 
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 2:30 p.m. 
 
 A family statement is thanking police and prosecutors for their hard work after charges were filed in the death of President Donald Trump's former national security adviser's father at a Philadelphia senior care facility. 
 
 Thirty-year-old Christann Shyvin Gainey was charged Thursday with involuntary manslaughter, neglect and records tampering in the death of H.R. McMaster Sr. 
 
 McMaster died April 13, about eight hours after falling and hitting his head at the Cathedral Village retirement community. 
 
 His daughter, Letitia McMaster, says her father was a tough and compassionate soldier and public servant. 
 
 She says the best way to honor his memory is for people to "help prevent others from suffering at the hands of those who lack compassion" and abandon "even the most basic standards of human decency." 
 
 The staffing agency where Gainey was employed had no comment Thursday. Phone numbers listed under Gainey's name rang unanswered Thursday. 
 
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 2:00 p.m. 
 
 A nurse has been charged in the death of President Donald Trump's former national security adviser's father at a Philadelphia senior care facility. 
 
 Thirty-year-old Christann Shyvin Gainey was charged Thursday with involuntary manslaughter, neglect and records tampering in the death of H.R. McMaster Sr. 
 
 McMaster died April 13, about eight hours after falling and hitting his head at the Cathedral Village retirement community. 
 
 The Pennsylvania attorney general's office says surveillance video showed that Gainey failed to conduct a series of neurological evaluations of McMaster as required. Prosecutors say she falsified documents to make it seem she had. 
 
 It wasn't immediately known if the contract employee had an attorney to comment on her behalf. 
 
 McMaster was an 84-year-old retired U.S. Army officer. His son served as Trump's national security adviser from February 2017 until March. 

 Pennsylvania Attorney General Josh Shapiro holds a news conference Thursday May 10, 2018 in Philadelphia to announce that Christann Shyvin Gainey, 30, a nurse, was charged Thursday in the death of the... (Associated Press) 
 
 Pennsylvania Attorney General Josh Shapiro holds a news conference Thursday May 10, 2018 in Philadelphia to announce that Christann Shyvin Gainey, 30, a nurse, was charged Thursday in the death of the father of H.R. McMaster, President Donald Trump's former national security adviser, after authorities... (Associated Press) 
 
 PHILADELPHIA (AP) — A nurse was charged Thursday in the death of the father of President Donald Trump's former national security adviser after authorities said she failed to give him a series of neurological exams following his fall at a Philadelphia senior care facility. 
 
 Christann Shyvin Gainey, 30, was charged with involuntary manslaughter, neglect and records tampering in the death of H.R. McMaster Sr. 
 
 The 84-year-old retired U.S. Army officer died April 13, about eight hours after falling and hitting his head at the Cathedral Village retirement community. 
 
 Surveillance video showed that Gainey, who worked as a contract nurse at Cathedral Village, failed to conduct a series of eight neurological evaluations of McMaster as required, prosecutors said. Gainey then allegedly falsified documents to make it seem she had. 
 
 Gainey's attorney, Sharon Piper, said her client intends to plead not guilty. She declined further comment, as did Gainey's employer, General Healthcare Resources of Plymouth Meeting. 
 
 McMaster's son, H.R. McMaster Jr., served as Trump's national security adviser from February 2017 until he resigned in March. 
 
 "Our father ... was a tough and compassionate soldier and public servant," McMaster's daughter, Letitia McMaster, said in a statement. "The best way to honor his memory is for all of us to do all we can to prevent others from suffering at the hands of those who lack compassion and abandon even the most basic standards of human decency. Today's charges are an important step forward in that connection." 
 
 McMaster was admitted to Cathedral Village on April 9 for rehabilitation following a stroke. Three days later, according to court documents, he was found on the floor of his room by a nursing assistant, who alerted Gainey, the charge nurse. 
 
 Cathedral Village policy mandates close neurological monitoring of patients who hit their heads, including assessments every 15 minutes for the first hour and every hour for the next three. 
 
 An assistant nursing director told police that after McMaster's death, she asked Gainey whether the nurse had conducted the required evaluations of McMaster. Gainey replied she had and said, "They were fine," according to a police affidavit. 
 
 When the supervisor noted the last entry on McMaster's neurological chart indicated that an evaluation had been performed 20 minutes after his death, Gainey told her, "Well, I falsified that one," the affidavit said. 
 
 Police reviewed about eight hours of surveillance video and concluded Gainey had failed to perform a single neurological exam. 
 
 A medical examiner ruled McMaster died of "blunt impact head trauma." 
 
 "Gainey could have saved Mr. McMaster's life had she simply done her job. Instead, she intentionally ignored her job responsibilities, falsified paperwork, and lied to her supervisors to cover up this inexcusable conduct," Democratic Attorney General Josh Shapiro said at a news conference Thursday. 
 
 Cathedral Village said in a statement last week that it removed "outside agency staff involved in the incident," re-educated staff on neurological checks and protocols for responding to suspected abuse and neglect, and began a new initiative to prevent falls. 
 
 The Pennsylvania Department of Health inspected Cathedral Village after McMaster's death, but the results aren't yet available. 
 
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 Rubinkam reported from northeastern Pennsylvania.
– A nurse intends to plead not guilty in the death of President Trump's former national security adviser's father at a Philadelphia senior care facility, her lawyer says. Thirty-year-old Christann Gainey was charged Thursday with involuntary manslaughter, neglect, and records tampering in HR McMaster Sr.'s death, the AP reports. McMaster died April 13, about eight hours after falling and hitting his head at the Cathedral Village retirement community. Authorities say Gainey failed to give him a series of neurological exams following his fall at the Philadelphia care facility, the AP notes. A family statement is thanking police and prosecutors for their hard work after charges were filed in the death, CNN reports. "Our father ... was a tough and compassionate soldier and public servant. He was committed to his neighbors, his fellow soldiers, his community and his country," says Letitia McMaster, his daughter. "The best way to honor his memory is for all of us to do all we can to prevent others from suffering at the hands of those who lack compassion and abandon even the most basic standards of human decency." The staffing agency where Gainey was employed had no comment.