Joshua Justin Lookingbill despised his romantic rival -- the boyfriend of Olga Cuadra, with whom Lookingbill shares three daughters, according to prosecutors.
Lookingbill so hated Nakia "Nitty" Williams, according to first assistant district attorney Jennifer Russell, that "under the cover of darkness" he broke into Cuadra's home in the 400 block of South Pershing Avenue about 4:20 a.m. Jan. 31, 2013, and, knife in hand, crept into Cuadra's bedroom, where she and Williams were sleeping.
There, Lookingbill attacked the defenseless Williams, stabbing him multiple times in the back, the side and in the arm, Russell told jurors Monday during her opening statement in Lookingbill's first-degree murder trial.
'Devastating' injuries: The injuries were devastating, she said.
Williams succumbed to them before police even arrived, testimony revealed.
The force of the attack left the sheets slashed and the mattress soaked in blood, and left blood spatter on at least one wall, as jurors saw for themselves when shown photos of the crime scene.
Although she was just inches away from her boyfriend when he was attacked, Cuadra told jurors she didn't wake up until Williams, 37, of York City, sat up in bed and told her to summon police and an ambulance.
'I saw Josh': It was Cuadra's now-8-year-old son, Jerell Simms, who saw the killer as he fled down Cuadra's stairs.
Jerell was clear on the witness stand that he was in court "to tell the truth ... about Nitty," and who hurt him.
"I saw Josh," the boy testified. "He was coming down the stairs, like stomping, and then I saw blood everywhere. ... I heard Mommy ... crying and screaming at the same time."
Jerell said he used to refer to Lookingbill as his daddy.
Emotional testimony: Cuadra also took the stand, though the first time she was crying so hard Common Pleas Judge Thomas H. Kelley VI called a brief recess to allow her to compose herself.
Cuadra later testified that while she was on the phone with 911, Jerell "ran up to me ... and he told me he saw his Daddy Josh running down the stairs."
Lookingbill hadn't been invited into her home and he didn't have a key, according to Cuadra.
Russell told jurors the spurned lover broke into the apartment by pushing out a piece of Plexiglas covering a portion of a window in the bedroom of Cuadra's four children. Cuadra testified Lookingbill had previously made that fix himself, the implication being he knew he could break in there.
'Angry' encounter: Still struggling to control her emotions, Cuadra also told jurors that the night before the slaying, Lookingbill came to her home and was angry when she wouldn't let him inside.
"He was banging on the door (of the second-floor balcony for) at least 10 or 15 minutes," she said.
Cuadra said after Lookingbill left, she noticed some of Williams' things -- a storage bin and a bag of clothes -- were missing from the balcony, and that chairs and other items had been moved around.
Abuse alleged: On cross-examination by chief public defender Bruce Blocher, Cuadra confirmed she'd previously complained to Lookingbill that Williams had "smacked" her a few times, including when she was pregnant with Lookingbill's youngest daughter.
She also testified Lookingbill had previously threatened to hurt Williams.
"He said that one day ... he was going to do something to him (and I) was never going to see him again," she said.
Teen found knife: Hours after the slaying, and about a block away, police recovered the large, blood-stained kitchen knife used to kill Williams, according to testimony, found by a William Penn Senior High School student on her way to school.
Lookingbill confessed to killing Williams, and even identified the bloody knife as being his weapon, according to Russell.
The 25-year-old, formerly of 700 block of West Poplar Street, remains in York County Prison without bail, charged with first- and second-degree murder and related offenses.
Trial is expected to resume Tuesday morning.
-- Reach Liz Evans Scolforo at email@example.com.