In case you missed it yesterday afternoon, here's the latest on the Porter Ranch park stabbing that occurred over the weekend of Aug. 25-26. I found out by searching through arrest reports that one of the two men wanted in connection was arrested for possession of a heroin needle sometime after the killing, released and then arrested later in connnection with the slaying.

Here's the story I wrote yesterday.

NORTHRIDGE - An 18-year-old Northridge man accused in the grisly park stabbing death of a 33-year-old homeless man was arrested in the hours after the murder in connection with possession of a heroin needle, but was released.

The suspect was arrested later on murder charges in West Los Angeles after trying to run from police.

Quinn Alexander Marez, a student, was arrested at 7 p.m. on Aug. 26 on the possession charge at his Northridge home, about seven hours after police found the bloodied body of Daniel Edward Koch laying face down in a creek. Marez was released from custody on that misdemeanor offense the next day on a written promise to appear in court.

Police said that when he was released on the misdemeanor charge Marez was a "person of interest" in the murder investigation, although they wouldn''t give specifics about the time line, said Los Angeles Police Lt. Tom Murrell. At some point, they said they had witnesses who could identify the men as suspects.

Police believe Marez and another man, Justin Thalheimer, 18, of Northridge, stabbed Koch after an argument late Aug. 25 or early Aug. 26 at Limekiln Canyon Park. The three apparently knew each other and had been drinking when an argument broke out, police said.

Police arrested Marez at 10 p.m. Tuesday after spotting him get off a bus in West Los Angeles. He was booked on suspicion of murder into the Los Angeles County Jail with bail set at $1 million. Prosecutors filed murder charges against him today. A judge issued an arrest warrant for Thalheimer, who is on the run.

At the time of Marez's arrest on Tuesday, he was out on bail in a case from July. He was due to appear in a Van Nuys courtroom yesterday to face charges of driving without the owner's consent, receiving stolen property, and narcotics possession, according to the court. A warrant was issued for his arrest when he did not show up in that case because the court was apparently not aware that he was already in custody in connection with the murder case.