<p>A 36-year-old Sheraden man accused of stabbing, killing and trying to dismember a 14-year-old girl last year pleaded guilty Thursday to second-degree murder in exchange for a sentence of life in prison without parole.</p>
<p>As Tushon Brown entered his admission of guilt, relatives of Lauren Deis packed the courtroom of Allegheny County Common Pleas Judge Edward Borkowski. When it came time for the girl's mother to speak, she placed two framed photos of her daughter on the counter.</p>