LANCASTER, Pa. — Update, 2:30 p.m. (Dec. 13): Timeline of events:
Sunday, Dec. 11 10:05 a.m.: Courtney Cooper, 35, is shot and killed inside her home on the 900 block of N. Lime St.
Sunday, Dec. 11 8:00 p.m.: Police respond to a reported shooting in the area of the 300 block of E. Liberty St. and find one adult victim with non-life-threatening injuries. They quickly find another adult victim with non-life-threatening injuries a short distance away, on the 400 block of Ice. Ave.
Sunday, Dec. 11 sometime after 8:00 p.m.: Police find Derek Stewart, 36, in a foot alley between the 400 blocks of Ice Ave. and E. Ross St. Stewart is suffering from a self-inflicted gunshot wound to the head and is alive but in critical condition
Monday, Dec. 12 8:30 a.m.: Police performing a wellness check on the residence of Courtney Cooper find her deceased in the home with an apparent gunshot wound
Monday, Dec. 12 3:08 p.m.: Stewart is pronounced dead at Penn Medicine Lancaster General Hospital
Update, 1 p.m. (Dec. 13): The Lancaster County Coroner's Office identified the suspect as Derek Stewart, 36, of the 900 block of N. Lime St. He shared the same home address as the woman he allegedly killed, Courtney Cooper.
Stewart succumbed to injuries sustained by a self-inflicted gunshot. He was pronounced dead at Lancaster General Hospital shortly after 3 p.m. on Monday.
After an autopsy, the coroner's office ruled the cause of death as a self-inflicted gunshot wound to the head. The manner of death was ruled a suicide.
A candlelight vigil is planned for Thursday, Dec. 15 from 5 to 6 p.m. in Lancaster's Penn Square to honor the recent victims of gun violence.
Previously
Police said a man shot three people, injuring two and killing one, before killing himself over the weekend in Lancaster.
Authorities provided further clarification and details on the shooting at a press conference on Tuesday, after previously reporting that about a suspicious death investigation and shooting.
At the press conference on Tuesday, police said the incidents were actually connected.
On Dec. 11 around 8:00 p.m., police were dispatched to the 300 block of E. Liberty St. for a reported shooting.
Upon arrival, authorities found two victims suffering from gunshot wounds. Both were taken to the hospital with non-life threatening injuries.
Then, police found a third person suffering from a gunshot wound in the 400 block of Ice Ave.
Authorities have identified that person as the shooting suspect, and he succumbed to his injuries.
On Dec. 12, police were dispatched to conduct a welfare check in the 900 block of N. Lime St. and found 35-year-old Courtney Cooper dead.
An autopsy showed that Cooper died from gunshot wounds to the body.
At the press conference on Tuesday, police confirmed that Cooper's death was connected to the shooting that had occurred.
"Gun violence has no place in our community," police said, as they ended the briefing.