Jason Dean Billingsley, suspect in murder of Pava LaPere.
What we know about repeat offender suspect in Baltimore tech CEO's death
01:57 - Source: CNN
CNN  — 

The 26-year-old tech executive whose body was found on the rooftop of her Baltimore apartment building Monday died of strangulation and blunt force trauma, court documents say.

Pava LaPere was killed Friday, but authorities didn’t discover her body for at least three days, according to a statement of charges filed in the District Court of Maryland for Baltimore City obtained by CNN affiliate WJZ. Her body was found near a brick and a pair of red shoes believed to be LaPere’s, the documents say. The medical examiner’s office determined LaPere suffered trauma to the head, face and body, the documents say.

But even before the CEO was killed, the man suspected of killing her was being tracked by investigators because police believed he was responsible for a rape, arson and attempted murder days earlier, officials said.

The stunning revelations came hours after the suspect, Jason Dean Billingsley, was arrested Wednesday night – ending a frantic manhunt for the convicted sex offender who had a 30-year sentence but was released from prison last year.

CNN has not been able to determine if Billingsley has an attorney at this time.

4 alleged felonies in 3 days

Baltimore police believe Billingsley is responsible for an arson, rape and attempted murder that happened September 19 in the 800 block of Edmondson Avenue – about a mile from where LaPere’s body was found days later.

Billingsley is accused of raping and attacking a woman before setting her and her boyfriend on fire, according to a statement of charges document filed in the District Court of Maryland for Baltimore City and obtained by CNN affiliate WJZ.

“All indications are that this was not a random act of violence,” Baltimore Acting Police Commissioner Richard Worley said. “We have information to believe that the victims … were targeted by the suspect – that the suspect knew the victims and he went into that location for a criminal reason.”

Investigators started looking for Billingsley, police said.

Police believe three days after the September 19 crimes, LaPere was killed.

Pava LaPere earned a spot on Forbes magazine's "30 Under 30" list this year, for social impact.