( CNN ) -- A woman was found guilty of murder Tuesday for repeatedly stabbing a Texas college professor with the heel of her stiletto . Ana Trujillo showed little emotion as the verdict was announced . She now faces up to life in prison for the June 2013 death of her boyfriend , Alf Stefan Andersson , CNN affiliate KPRC reported . The affiliate said Trujillo stabbed Andersson more than 25 times . The defense argued that prosecutors had failed to show motive and that Trujillo was a victim of domestic violence , KPRC said . Prosecutors reportedly told jurors that she made up the story that she had acted in self defense . According to CNN affiliate KTRK , when police arrived at Andersson 's apartment , Trujillo , who had recently worked as a massage therapist , answered the door with blood on her clothes and hands ; Andersson was lying in the hallway face up , with a stiletto by his head , KTRK reported , citing court records . Trujillo had recently moved in with Andersson , and she told investigators that he grabbed her , and a struggle followed , said KTRK . Andersson was a full-time research professor at the University of Houston 's Center for Nuclear Receptor and Cell Signaling . In a statement last year , the school said it was `` saddened to learn of the tragic death of Professor Stefan Andersson . Our hearts go out to his colleagues , family and friends during this difficult time . '' CNN 's Josh Levs contributed to this report .
Ana Trujillo faces up to life in prison for the death of Alf Stefan Andersson , KPRC reports . She showed little emotion as the verdict was announced . The jury found her guilty on all counts and recommended a sentence of 25 years to life.