The San Francisco Police Department sent out a flurry of announcements to press Tuesday, including news that arrests had been made in two recent homicides.

According to a release sent by SFPD spokesperson Officer Grace Gatpandan, 26-year-old Andres Novelo and 31-year-old Josue Chan-Perez have both been arrested in the fatal stabbing of 25-year-old Berkeley man Casey Bissell, who was killed at around 2:30 Sunday morning at 18th and Valencia Streets.

According to police, Bissel had been arguing with the suspects when one of them stabbed him. He was transported to San Francisco General Hospital, where he died. According to a recent count, his slaying was San Francisco's 41st for 2014.

SFPD isn't giving out much more information on this case at this time: they declined to say when or where the suspects were arrested, their city of residence, or if police had determined a motive in the attack. They also aren't releasing booking photos, citing pending identification matters.

Both Novelo and Chan-Perez have been booked into San Francisco County Jail for murder, attempted murder, conspiracy, and aggravated assault charges.

In a second announcement sent Tuesday, police say that San Francisco man Antonio Dupree was arrested in the November homicide of 63-year-old San Francisco man Gary Mulhearn (Note: SFPD has released the victim's name as "Mulhern" and "Mulhearn." A request for the proper spelling has not been responded to at publication time.)

Mulhearn was found dead at 2:37 p.m. on November 24 in his apartment on the first block of Essex Street, which is between First and Second Streets in SoMa. His cause of death has not been released by officials.

According to the SFPD's release, investigators determined that Mulhearn had been killed on Friday November 21. The Bay Area Reporter, which had a detailed report on Dupree's arrest nearly a week ago, reports that the deceased man was "a mentor” to the suspect, and that Dupree has a lengthy list of past criminal offenses, including arson causing great bodily injury, drug offenses, and assault.

The BAR reports that Dupree will be facing charges of murder, attempted murder (there was apparently an assault on a second victim), assault with a deadly weapon (according to court records, a belt), and residential burglary.

Dupree's presently in San Francisco County Jail on $10 million bail, and is expected to return to court on December 17.