Family: Man who shot, killed pregnant Garfield woman tweets after slaying

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PITTSBURGH - The family members of a pregnant woman who was shot and killed in Garfield Wednesday night said the man police are looking for sent out tweets after the slaying.
 
Channel 11’s Vince Sims spoke to devastated family members of 20-year-old Lauren Williams. According to those family members, the suspect, Karrese Lawrence, uses the name “President Kolumbo” on Twitter and Instagram.
 
Screen shots shared with Channel 11 News show that someone from that account tweeted several disturbing messages in the hours following Williams’ death.
 
One tweet said, “Go watch da news I’ll be on dere.” Another said, “Show I smoked her,” “Call me a murder.”
 
Police have obtained a warrant for Lawrence's arrest, records show.
 
The Allegheny County Medical Examiner's Office said Williams died at 10:45 p.m. at UPMC Presbyterian hospital.
 
“Lauren was a God gift to me, and God had to come back and get her,” said Williams’ mother, Laurell Harbour.
 
Harbour said Williams was three months pregnant.
 
“I have no words to describe the pain that I feel right now towards him (Lawrence).  He took my baby from me for nothing,” said Harbour.
 
Williams’ family said she wanted to break off the relationship.
 
“Lauren was good people.  She was a good person – inspirational and in high spirit.  She was a diamond,” said Harbour.
 
Police said a witness told them Lawrence emerged from an abandoned building and shot Williams.
 
Williams had spent the day with a friend planning her baby shower, the complaint said.
 
Online court records show Pittsburgh police in December charged Lawrence with carrying a firearm without a license, conspiracy, both felonies, and marijuana possession, a misdemeanor. He is scheduled to face a non-jury trial on those charges in June.
 
In a separate case, court records indicate Williams pleaded guilty in January to marijuana possession and criminal use of a communication facility.