from Reuters:

Police seek suspect in blast near Santa Monica synagogue

A blast outside a Los Angeles-area synagogue this week was caused by an explosive device and police on Saturday were looking for a suspect, authorities said.

The explosion on Thursday near the Chabad House in the Los Angeles suburb of Santa Monica injured no one and was blamed by police that day on a mechanical failure.

… Santa Monica police said in a statement late on Friday that they were looking for a transient suspect named Ron Hirsch in connection with the blast.